Home / 125,197.20-187,802.64-31,703.76

Finding the Fourth Proportional to 125,197.20, 187,802.64 and 31,703.76

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Solution

The fourth proportional to 125,197.20, 187,802.64 and 31,703.76 is: 47,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,197.20 : 187,802.64 = 31,703.76 : x
  2. Step 2: Convert to fraction form
    125,197.20/187,802.64 = 31,703.76/x
  3. Step 3: Cross multiply
    125,197.20x = 187,802.64 × 31,703.76
  4. Step 4: Simplify right side
    125,197.20x = 5,954,048,728.39
  5. Step 5: Solve for x
    x = 5,954,048,728.39/125,197.20
  6. Step 6: Final answer
    x = 47,557.37

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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.