Home / 105,572.30-145,681.89-60,249.02

Finding the Fourth Proportional to 105,572.30, 145,681.89 and 60,249.02

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Solution

The fourth proportional to 105,572.30, 145,681.89 and 60,249.02 is: 83,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,572.30 : 145,681.89 = 60,249.02 : x
  2. Step 2: Convert to fraction form
    105,572.30/145,681.89 = 60,249.02/x
  3. Step 3: Cross multiply
    105,572.30x = 145,681.89 × 60,249.02
  4. Step 4: Simplify right side
    105,572.30x = 8,777,191,104.25
  5. Step 5: Solve for x
    x = 8,777,191,104.25/105,572.30
  6. Step 6: Final answer
    x = 83,139.15

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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.