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Finding the Fourth Proportional to 125,055, 172,559.82 and 71,336.82

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Solution

The fourth proportional to 125,055, 172,559.82 and 71,336.82 is: 98,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,055 : 172,559.82 = 71,336.82 : x
  2. Step 2: Convert to fraction form
    125,055/172,559.82 = 71,336.82/x
  3. Step 3: Cross multiply
    125,055x = 172,559.82 × 71,336.82
  4. Step 4: Simplify right side
    125,055x = 12,309,868,818.57
  5. Step 5: Solve for x
    x = 12,309,868,818.57/125,055
  6. Step 6: Final answer
    x = 98,435.64

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1.5x scale

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.