Home / 125,105.26-187,677.06-42,018.70

Finding the Fourth Proportional to 125,105.26, 187,677.06 and 42,018.70

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Solution

The fourth proportional to 125,105.26, 187,677.06 and 42,018.70 is: 63,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,105.26 : 187,677.06 = 42,018.70 : x
  2. Step 2: Convert to fraction form
    125,105.26/187,677.06 = 42,018.70/x
  3. Step 3: Cross multiply
    125,105.26x = 187,677.06 × 42,018.70
  4. Step 4: Simplify right side
    125,105.26x = 7,885,946,081.02
  5. Step 5: Solve for x
    x = 7,885,946,081.02/125,105.26
  6. Step 6: Final answer
    x = 63,034.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.