Home / 98,517.13-135,956.90-53,805.13

Finding the Fourth Proportional to 98,517.13, 135,956.90 and 53,805.13

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Solution

The fourth proportional to 98,517.13, 135,956.90 and 53,805.13 is: 74,252.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,517.13 : 135,956.90 = 53,805.13 : x
  2. Step 2: Convert to fraction form
    98,517.13/135,956.90 = 53,805.13/x
  3. Step 3: Cross multiply
    98,517.13x = 135,956.90 × 53,805.13
  4. Step 4: Simplify right side
    98,517.13x = 7,315,178,678.90
  5. Step 5: Solve for x
    x = 7,315,178,678.90/98,517.13
  6. Step 6: Final answer
    x = 74,252.86

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1.5x scale

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.