Home / 130,904.20-180,648.66-74,316.52

Finding the Fourth Proportional to 130,904.20, 180,648.66 and 74,316.52

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Solution

The fourth proportional to 130,904.20, 180,648.66 and 74,316.52 is: 102,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,904.20 : 180,648.66 = 74,316.52 : x
  2. Step 2: Convert to fraction form
    130,904.20/180,648.66 = 74,316.52/x
  3. Step 3: Cross multiply
    130,904.20x = 180,648.66 × 74,316.52
  4. Step 4: Simplify right side
    130,904.20x = 13,425,179,753.86
  5. Step 5: Solve for x
    x = 13,425,179,753.86/130,904.20
  6. Step 6: Final answer
    x = 102,557.29

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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.