Home / 125,731.83-173,504.64-71,287.66

Finding the Fourth Proportional to 125,731.83, 173,504.64 and 71,287.66

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Solution

The fourth proportional to 125,731.83, 173,504.64 and 71,287.66 is: 98,373.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,731.83 : 173,504.64 = 71,287.66 : x
  2. Step 2: Convert to fraction form
    125,731.83/173,504.64 = 71,287.66/x
  3. Step 3: Cross multiply
    125,731.83x = 173,504.64 × 71,287.66
  4. Step 4: Simplify right side
    125,731.83x = 12,368,739,784.74
  5. Step 5: Solve for x
    x = 12,368,739,784.74/125,731.83
  6. Step 6: Final answer
    x = 98,373.97

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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.