Home / 102,359.28-141,254.37-57,039.18

Finding the Fourth Proportional to 102,359.28, 141,254.37 and 57,039.18

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Solution

The fourth proportional to 102,359.28, 141,254.37 and 57,039.18 is: 78,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,359.28 : 141,254.37 = 57,039.18 : x
  2. Step 2: Convert to fraction form
    102,359.28/141,254.37 = 57,039.18/x
  3. Step 3: Cross multiply
    102,359.28x = 141,254.37 × 57,039.18
  4. Step 4: Simplify right side
    102,359.28x = 8,057,033,436.22
  5. Step 5: Solve for x
    x = 8,057,033,436.22/102,359.28
  6. Step 6: Final answer
    x = 78,713.27

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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.