Home / 156,752.60-235,229.70-86,682.20

Finding the Fourth Proportional to 156,752.60, 235,229.70 and 86,682.20

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Solution

The fourth proportional to 156,752.60, 235,229.70 and 86,682.20 is: 130,079.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,752.60 : 235,229.70 = 86,682.20 : x
  2. Step 2: Convert to fraction form
    156,752.60/235,229.70 = 86,682.20/x
  3. Step 3: Cross multiply
    156,752.60x = 235,229.70 × 86,682.20
  4. Step 4: Simplify right side
    156,752.60x = 20,390,227,901.34
  5. Step 5: Solve for x
    x = 20,390,227,901.34/156,752.60
  6. Step 6: Final answer
    x = 130,079.04

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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.