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Finding the Fourth Proportional to 130,853.92, 180,480.72 and 88,368.16

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Solution

The fourth proportional to 130,853.92, 180,480.72 and 88,368.16 is: 121,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,853.92 : 180,480.72 = 88,368.16 : x
  2. Step 2: Convert to fraction form
    130,853.92/180,480.72 = 88,368.16/x
  3. Step 3: Cross multiply
    130,853.92x = 180,480.72 × 88,368.16
  4. Step 4: Simplify right side
    130,853.92x = 15,948,749,141.88
  5. Step 5: Solve for x
    x = 15,948,749,141.88/130,853.92
  6. Step 6: Final answer
    x = 121,882.09

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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.