Home / 118,009.20-176,754.60-71,180.40

Finding the Fourth Proportional to 118,009.20, 176,754.60 and 71,180.40

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Solution

The fourth proportional to 118,009.20, 176,754.60 and 71,180.40 is: 106,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,009.20 : 176,754.60 = 71,180.40 : x
  2. Step 2: Convert to fraction form
    118,009.20/176,754.60 = 71,180.40/x
  3. Step 3: Cross multiply
    118,009.20x = 176,754.60 × 71,180.40
  4. Step 4: Simplify right side
    118,009.20x = 12,581,463,129.84
  5. Step 5: Solve for x
    x = 12,581,463,129.84/118,009.20
  6. Step 6: Final answer
    x = 106,614.26

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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.