Home / 156,955.10-235,432.65-139,751.90

Finding the Fourth Proportional to 156,955.10, 235,432.65 and 139,751.90

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Solution

The fourth proportional to 156,955.10, 235,432.65 and 139,751.90 is: 209,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,955.10 : 235,432.65 = 139,751.90 : x
  2. Step 2: Convert to fraction form
    156,955.10/235,432.65 = 139,751.90/x
  3. Step 3: Cross multiply
    156,955.10x = 235,432.65 × 139,751.90
  4. Step 4: Simplify right side
    156,955.10x = 32,902,160,159.54
  5. Step 5: Solve for x
    x = 32,902,160,159.54/156,955.10
  6. Step 6: Final answer
    x = 209,627.85

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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.