Home / 105,318.39-145,342.17-62,901.39

Finding the Fourth Proportional to 105,318.39, 145,342.17 and 62,901.39

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Solution

The fourth proportional to 105,318.39, 145,342.17 and 62,901.39 is: 86,805.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,318.39 : 145,342.17 = 62,901.39 : x
  2. Step 2: Convert to fraction form
    105,318.39/145,342.17 = 62,901.39/x
  3. Step 3: Cross multiply
    105,318.39x = 145,342.17 × 62,901.39
  4. Step 4: Simplify right side
    105,318.39x = 9,142,224,518.62
  5. Step 5: Solve for x
    x = 9,142,224,518.62/105,318.39
  6. Step 6: Final answer
    x = 86,805.59

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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.