Home / 105,351.28-145,372.86-62,332.09

Finding the Fourth Proportional to 105,351.28, 145,372.86 and 62,332.09

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Solution

The fourth proportional to 105,351.28, 145,372.86 and 62,332.09 is: 86,011.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,351.28 : 145,372.86 = 62,332.09 : x
  2. Step 2: Convert to fraction form
    105,351.28/145,372.86 = 62,332.09/x
  3. Step 3: Cross multiply
    105,351.28x = 145,372.86 × 62,332.09
  4. Step 4: Simplify right side
    105,351.28x = 9,061,393,829.65
  5. Step 5: Solve for x
    x = 9,061,393,829.65/105,351.28
  6. Step 6: Final answer
    x = 86,011.24

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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.