Home / 115,253.07-159,045.30-63,572.21

Finding the Fourth Proportional to 115,253.07, 159,045.30 and 63,572.21

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Solution

The fourth proportional to 115,253.07, 159,045.30 and 63,572.21 is: 87,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,253.07 : 159,045.30 = 63,572.21 : x
  2. Step 2: Convert to fraction form
    115,253.07/159,045.30 = 63,572.21/x
  3. Step 3: Cross multiply
    115,253.07x = 159,045.30 × 63,572.21
  4. Step 4: Simplify right side
    115,253.07x = 10,110,861,211.11
  5. Step 5: Solve for x
    x = 10,110,861,211.11/115,253.07
  6. Step 6: Final answer
    x = 87,727.48

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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.