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Finding the Fourth Proportional to 127,588.46, 176,069.46 and 79,868.12

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Solution

The fourth proportional to 127,588.46, 176,069.46 and 79,868.12 is: 110,216.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,588.46 : 176,069.46 = 79,868.12 : x
  2. Step 2: Convert to fraction form
    127,588.46/176,069.46 = 79,868.12/x
  3. Step 3: Cross multiply
    127,588.46x = 176,069.46 × 79,868.12
  4. Step 4: Simplify right side
    127,588.46x = 14,062,337,499.29
  5. Step 5: Solve for x
    x = 14,062,337,499.29/127,588.46
  6. Step 6: Final answer
    x = 110,216.37

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1.5x scale

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.