Home / 102,395.16-141,275.88-66,637.80

Finding the Fourth Proportional to 102,395.16, 141,275.88 and 66,637.80

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Solution

The fourth proportional to 102,395.16, 141,275.88 and 66,637.80 is: 91,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,395.16 : 141,275.88 = 66,637.80 : x
  2. Step 2: Convert to fraction form
    102,395.16/141,275.88 = 66,637.80/x
  3. Step 3: Cross multiply
    102,395.16x = 141,275.88 × 66,637.80
  4. Step 4: Simplify right side
    102,395.16x = 9,414,313,836.26
  5. Step 5: Solve for x
    x = 9,414,313,836.26/102,395.16
  6. Step 6: Final answer
    x = 91,941.00

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1.5x scale

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.