Home / 102,878.29-141,966.29-57,547.52

Finding the Fourth Proportional to 102,878.29, 141,966.29 and 57,547.52

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Solution

The fourth proportional to 102,878.29, 141,966.29 and 57,547.52 is: 79,412.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,878.29 : 141,966.29 = 57,547.52 : x
  2. Step 2: Convert to fraction form
    102,878.29/141,966.29 = 57,547.52/x
  3. Step 3: Cross multiply
    102,878.29x = 141,966.29 × 57,547.52
  4. Step 4: Simplify right side
    102,878.29x = 8,169,806,915.53
  5. Step 5: Solve for x
    x = 8,169,806,915.53/102,878.29
  6. Step 6: Final answer
    x = 79,412.36

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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.