Home / 105,360.75-145,397.97-57,613.95

Finding the Fourth Proportional to 105,360.75, 145,397.97 and 57,613.95

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Solution

The fourth proportional to 105,360.75, 145,397.97 and 57,613.95 is: 79,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,360.75 : 145,397.97 = 57,613.95 : x
  2. Step 2: Convert to fraction form
    105,360.75/145,397.97 = 57,613.95/x
  3. Step 3: Cross multiply
    105,360.75x = 145,397.97 × 57,613.95
  4. Step 4: Simplify right side
    105,360.75x = 8,376,951,373.68
  5. Step 5: Solve for x
    x = 8,376,951,373.68/105,360.75
  6. Step 6: Final answer
    x = 79,507.32

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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.