Home / 125,740.18-173,523.56-72,029.89

Finding the Fourth Proportional to 125,740.18, 173,523.56 and 72,029.89

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Solution

The fourth proportional to 125,740.18, 173,523.56 and 72,029.89 is: 99,402.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,740.18 : 173,523.56 = 72,029.89 : x
  2. Step 2: Convert to fraction form
    125,740.18/173,523.56 = 72,029.89/x
  3. Step 3: Cross multiply
    125,740.18x = 173,523.56 × 72,029.89
  4. Step 4: Simplify right side
    125,740.18x = 12,498,882,939.21
  5. Step 5: Solve for x
    x = 12,498,882,939.21/125,740.18
  6. Step 6: Final answer
    x = 99,402.46

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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.