Home / 102,864.96-141,941.52-57,545.28

Finding the Fourth Proportional to 102,864.96, 141,941.52 and 57,545.28

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Solution

The fourth proportional to 102,864.96, 141,941.52 and 57,545.28 is: 79,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,864.96 : 141,941.52 = 57,545.28 : x
  2. Step 2: Convert to fraction form
    102,864.96/141,941.52 = 57,545.28/x
  3. Step 3: Cross multiply
    102,864.96x = 141,941.52 × 57,545.28
  4. Step 4: Simplify right side
    102,864.96x = 8,168,064,512.03
  5. Step 5: Solve for x
    x = 8,168,064,512.03/102,864.96
  6. Step 6: Final answer
    x = 79,405.70

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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.