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Finding the Fourth Proportional to 130,451.88, 180,024.24 and 73,874.28

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Solution

The fourth proportional to 130,451.88, 180,024.24 and 73,874.28 is: 101,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,451.88 : 180,024.24 = 73,874.28 : x
  2. Step 2: Convert to fraction form
    130,451.88/180,024.24 = 73,874.28/x
  3. Step 3: Cross multiply
    130,451.88x = 180,024.24 × 73,874.28
  4. Step 4: Simplify right side
    130,451.88x = 13,299,161,112.55
  5. Step 5: Solve for x
    x = 13,299,161,112.55/130,451.88
  6. Step 6: Final answer
    x = 101,946.87

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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.