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Finding the Fourth Proportional to 125,357.60, 187,859.60 and 69,222.98

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Solution

The fourth proportional to 125,357.60, 187,859.60 and 69,222.98 is: 103,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,357.60 : 187,859.60 = 69,222.98 : x
  2. Step 2: Convert to fraction form
    125,357.60/187,859.60 = 69,222.98/x
  3. Step 3: Cross multiply
    125,357.60x = 187,859.60 × 69,222.98
  4. Step 4: Simplify right side
    125,357.60x = 13,004,201,333.61
  5. Step 5: Solve for x
    x = 13,004,201,333.61/125,357.60
  6. Step 6: Final answer
    x = 103,736.84

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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.