Home / 125,120.22-172,663.95-71,403.85

Finding the Fourth Proportional to 125,120.22, 172,663.95 and 71,403.85

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Solution

The fourth proportional to 125,120.22, 172,663.95 and 71,403.85 is: 98,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,120.22 : 172,663.95 = 71,403.85 : x
  2. Step 2: Convert to fraction form
    125,120.22/172,663.95 = 71,403.85/x
  3. Step 3: Cross multiply
    125,120.22x = 172,663.95 × 71,403.85
  4. Step 4: Simplify right side
    125,120.22x = 12,328,870,786.21
  5. Step 5: Solve for x
    x = 12,328,870,786.21/125,120.22
  6. Step 6: Final answer
    x = 98,536.20

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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.