Home / 121,553.15-182,328.26-31,587.89

Finding the Fourth Proportional to 121,553.15, 182,328.26 and 31,587.89

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Solution

The fourth proportional to 121,553.15, 182,328.26 and 31,587.89 is: 47,381.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,553.15 : 182,328.26 = 31,587.89 : x
  2. Step 2: Convert to fraction form
    121,553.15/182,328.26 = 31,587.89/x
  3. Step 3: Cross multiply
    121,553.15x = 182,328.26 × 31,587.89
  4. Step 4: Simplify right side
    121,553.15x = 5,759,363,951.19
  5. Step 5: Solve for x
    x = 5,759,363,951.19/121,553.15
  6. Step 6: Final answer
    x = 47,381.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.