Home / 156,619.60-234,929.40-112,660.90

Finding the Fourth Proportional to 156,619.60, 234,929.40 and 112,660.90

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Solution

The fourth proportional to 156,619.60, 234,929.40 and 112,660.90 is: 168,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,619.60 : 234,929.40 = 112,660.90 : x
  2. Step 2: Convert to fraction form
    156,619.60/234,929.40 = 112,660.90/x
  3. Step 3: Cross multiply
    156,619.60x = 234,929.40 × 112,660.90
  4. Step 4: Simplify right side
    156,619.60x = 26,467,357,640.46
  5. Step 5: Solve for x
    x = 26,467,357,640.46/156,619.60
  6. Step 6: Final answer
    x = 168,991.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.