Home / 147,767.56-221,979.42-91,649.16

Finding the Fourth Proportional to 147,767.56, 221,979.42 and 91,649.16

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Solution

The fourth proportional to 147,767.56, 221,979.42 and 91,649.16 is: 137,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,767.56 : 221,979.42 = 91,649.16 : x
  2. Step 2: Convert to fraction form
    147,767.56/221,979.42 = 91,649.16/x
  3. Step 3: Cross multiply
    147,767.56x = 221,979.42 × 91,649.16
  4. Step 4: Simplify right side
    147,767.56x = 20,344,227,380.29
  5. Step 5: Solve for x
    x = 20,344,227,380.29/147,767.56
  6. Step 6: Final answer
    x = 137,677.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.