Home / 153,548.11-211,902.92-85,565.17

Finding the Fourth Proportional to 153,548.11, 211,902.92 and 85,565.17

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Solution

The fourth proportional to 153,548.11, 211,902.92 and 85,565.17 is: 118,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,548.11 : 211,902.92 = 85,565.17 : x
  2. Step 2: Convert to fraction form
    153,548.11/211,902.92 = 85,565.17/x
  3. Step 3: Cross multiply
    153,548.11x = 211,902.92 × 85,565.17
  4. Step 4: Simplify right side
    153,548.11x = 18,131,508,945.47
  5. Step 5: Solve for x
    x = 18,131,508,945.47/153,548.11
  6. Step 6: Final answer
    x = 118,083.57

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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.