Home / 130,876.95-180,562.75-74,255.52

Finding the Fourth Proportional to 130,876.95, 180,562.75 and 74,255.52

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Solution

The fourth proportional to 130,876.95, 180,562.75 and 74,255.52 is: 102,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,876.95 : 180,562.75 = 74,255.52 : x
  2. Step 2: Convert to fraction form
    130,876.95/180,562.75 = 74,255.52/x
  3. Step 3: Cross multiply
    130,876.95x = 180,562.75 × 74,255.52
  4. Step 4: Simplify right side
    130,876.95x = 13,407,780,893.88
  5. Step 5: Solve for x
    x = 13,407,780,893.88/130,876.95
  6. Step 6: Final answer
    x = 102,445.70

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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.