Home / 129,308.04-178,343.90-88,496.36

Finding the Fourth Proportional to 129,308.04, 178,343.90 and 88,496.36

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Solution

The fourth proportional to 129,308.04, 178,343.90 and 88,496.36 is: 122,055.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,308.04 : 178,343.90 = 88,496.36 : x
  2. Step 2: Convert to fraction form
    129,308.04/178,343.90 = 88,496.36/x
  3. Step 3: Cross multiply
    129,308.04x = 178,343.90 × 88,496.36
  4. Step 4: Simplify right side
    129,308.04x = 15,782,785,978.20
  5. Step 5: Solve for x
    x = 15,782,785,978.20/129,308.04
  6. Step 6: Final answer
    x = 122,055.72

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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.