Home / 127,919.52-176,530.32-71,331.84

Finding the Fourth Proportional to 127,919.52, 176,530.32 and 71,331.84

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Solution

The fourth proportional to 127,919.52, 176,530.32 and 71,331.84 is: 98,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,919.52 : 176,530.32 = 71,331.84 : x
  2. Step 2: Convert to fraction form
    127,919.52/176,530.32 = 71,331.84/x
  3. Step 3: Cross multiply
    127,919.52x = 176,530.32 × 71,331.84
  4. Step 4: Simplify right side
    127,919.52x = 12,592,232,541.39
  5. Step 5: Solve for x
    x = 12,592,232,541.39/127,919.52
  6. Step 6: Final answer
    x = 98,438.71

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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.