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Finding the Fourth Proportional to 125,159.74, 187,700.31 and 40,900.69

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Solution

The fourth proportional to 125,159.74, 187,700.31 and 40,900.69 is: 61,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,159.74 : 187,700.31 = 40,900.69 : x
  2. Step 2: Convert to fraction form
    125,159.74/187,700.31 = 40,900.69/x
  3. Step 3: Cross multiply
    125,159.74x = 187,700.31 × 40,900.69
  4. Step 4: Simplify right side
    125,159.74x = 7,677,072,192.21
  5. Step 5: Solve for x
    x = 7,677,072,192.21/125,159.74
  6. Step 6: Final answer
    x = 61,338.19

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1.5x scale

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.