Home / 105,356.28-145,379.76-62,337.08

Finding the Fourth Proportional to 105,356.28, 145,379.76 and 62,337.08

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Solution

The fourth proportional to 105,356.28, 145,379.76 and 62,337.08 is: 86,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,356.28 : 145,379.76 = 62,337.08 : x
  2. Step 2: Convert to fraction form
    105,356.28/145,379.76 = 62,337.08/x
  3. Step 3: Cross multiply
    105,356.28x = 145,379.76 × 62,337.08
  4. Step 4: Simplify right side
    105,356.28x = 9,062,549,729.50
  5. Step 5: Solve for x
    x = 9,062,549,729.50/105,356.28
  6. Step 6: Final answer
    x = 86,018.13

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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.