Home / 130,928.20-180,679.28-74,335.93

Finding the Fourth Proportional to 130,928.20, 180,679.28 and 74,335.93

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Solution

The fourth proportional to 130,928.20, 180,679.28 and 74,335.93 is: 102,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,928.20 : 180,679.28 = 74,335.93 : x
  2. Step 2: Convert to fraction form
    130,928.20/180,679.28 = 74,335.93/x
  3. Step 3: Cross multiply
    130,928.20x = 180,679.28 × 74,335.93
  4. Step 4: Simplify right side
    130,928.20x = 13,430,961,487.15
  5. Step 5: Solve for x
    x = 13,430,961,487.15/130,928.20
  6. Step 6: Final answer
    x = 102,582.65

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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.