Home / 102,555.73-141,534.02-57,242.56

Finding the Fourth Proportional to 102,555.73, 141,534.02 and 57,242.56

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Solution

The fourth proportional to 102,555.73, 141,534.02 and 57,242.56 is: 78,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,555.73 : 141,534.02 = 57,242.56 : x
  2. Step 2: Convert to fraction form
    102,555.73/141,534.02 = 57,242.56/x
  3. Step 3: Cross multiply
    102,555.73x = 141,534.02 × 57,242.56
  4. Step 4: Simplify right side
    102,555.73x = 8,101,769,631.89
  5. Step 5: Solve for x
    x = 8,101,769,631.89/102,555.73
  6. Step 6: Final answer
    x = 78,998.70

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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.