Home / 97,934.79-135,111.86-72,502.04

Finding the Fourth Proportional to 97,934.79, 135,111.86 and 72,502.04

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Solution

The fourth proportional to 97,934.79, 135,111.86 and 72,502.04 is: 100,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,934.79 : 135,111.86 = 72,502.04 : x
  2. Step 2: Convert to fraction form
    97,934.79/135,111.86 = 72,502.04/x
  3. Step 3: Cross multiply
    97,934.79x = 135,111.86 × 72,502.04
  4. Step 4: Simplify right side
    97,934.79x = 9,795,884,440.12
  5. Step 5: Solve for x
    x = 9,795,884,440.12/97,934.79
  6. Step 6: Final answer
    x = 100,024.56

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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.