Home / 125,023.86-172,534.01-71,311.61

Finding the Fourth Proportional to 125,023.86, 172,534.01 and 71,311.61

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Solution

The fourth proportional to 125,023.86, 172,534.01 and 71,311.61 is: 98,410.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,023.86 : 172,534.01 = 71,311.61 : x
  2. Step 2: Convert to fraction form
    125,023.86/172,534.01 = 71,311.61/x
  3. Step 3: Cross multiply
    125,023.86x = 172,534.01 × 71,311.61
  4. Step 4: Simplify right side
    125,023.86x = 12,303,676,813.63
  5. Step 5: Solve for x
    x = 12,303,676,813.63/125,023.86
  6. Step 6: Final answer
    x = 98,410.63

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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.