Home / 125,077.91-172,613.63-71,373.39

Finding the Fourth Proportional to 125,077.91, 172,613.63 and 71,373.39

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Solution

The fourth proportional to 125,077.91, 172,613.63 and 71,373.39 is: 98,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,077.91 : 172,613.63 = 71,373.39 : x
  2. Step 2: Convert to fraction form
    125,077.91/172,613.63 = 71,373.39/x
  3. Step 3: Cross multiply
    125,077.91x = 172,613.63 × 71,373.39
  4. Step 4: Simplify right side
    125,077.91x = 12,320,019,464.44
  5. Step 5: Solve for x
    x = 12,320,019,464.44/125,077.91
  6. Step 6: Final answer
    x = 98,498.77

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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.