Home / 102,869.70-141,954.47-57,538.92

Finding the Fourth Proportional to 102,869.70, 141,954.47 and 57,538.92

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Solution

The fourth proportional to 102,869.70, 141,954.47 and 57,538.92 is: 79,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,869.70 : 141,954.47 = 57,538.92 : x
  2. Step 2: Convert to fraction form
    102,869.70/141,954.47 = 57,538.92/x
  3. Step 3: Cross multiply
    102,869.70x = 141,954.47 × 57,538.92
  4. Step 4: Simplify right side
    102,869.70x = 8,167,906,605.28
  5. Step 5: Solve for x
    x = 8,167,906,605.28/102,869.70
  6. Step 6: Final answer
    x = 79,400.51

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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.