Home / 143,971,249.12-198,817,540.81-136,127,787.36

Finding the Fourth Proportional to 143,971,249.12, 198,817,540.81 and 136,127,787.36

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Solution

The fourth proportional to 143,971,249.12, 198,817,540.81 and 136,127,787.36 is: 187,986,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,971,249.12 : 198,817,540.81 = 136,127,787.36 : x
  2. Step 2: Convert to fraction form
    143,971,249.12/198,817,540.81 = 136,127,787.36/x
  3. Step 3: Cross multiply
    143,971,249.12x = 198,817,540.81 × 136,127,787.36
  4. Step 4: Simplify right side
    143,971,249.12x = 27,064,591,918,141,168
  5. Step 5: Solve for x
    x = 27,064,591,918,141,168/143,971,249.12
  6. Step 6: Final answer
    x = 187,986,088.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.