Home / 102,707.92-141,743.61-57,386.17

Finding the Fourth Proportional to 102,707.92, 141,743.61 and 57,386.17

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Solution

The fourth proportional to 102,707.92, 141,743.61 and 57,386.17 is: 79,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,707.92 : 141,743.61 = 57,386.17 : x
  2. Step 2: Convert to fraction form
    102,707.92/141,743.61 = 57,386.17/x
  3. Step 3: Cross multiply
    102,707.92x = 141,743.61 × 57,386.17
  4. Step 4: Simplify right side
    102,707.92x = 8,134,122,899.87
  5. Step 5: Solve for x
    x = 8,134,122,899.87/102,707.92
  6. Step 6: Final answer
    x = 79,196.65

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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.