Home / 107,415.16-148,209.06-64,972.78

Finding the Fourth Proportional to 107,415.16, 148,209.06 and 64,972.78

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Solution

The fourth proportional to 107,415.16, 148,209.06 and 64,972.78 is: 89,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,415.16 : 148,209.06 = 64,972.78 : x
  2. Step 2: Convert to fraction form
    107,415.16/148,209.06 = 64,972.78/x
  3. Step 3: Cross multiply
    107,415.16x = 148,209.06 × 64,972.78
  4. Step 4: Simplify right side
    107,415.16x = 9,629,554,649.39
  5. Step 5: Solve for x
    x = 9,629,554,649.39/107,415.16
  6. Step 6: Final answer
    x = 89,648.00

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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.