Home / 156,956.90-235,435.35-103,812.80

Finding the Fourth Proportional to 156,956.90, 235,435.35 and 103,812.80

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Solution

The fourth proportional to 156,956.90, 235,435.35 and 103,812.80 is: 155,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.90 : 235,435.35 = 103,812.80 : x
  2. Step 2: Convert to fraction form
    156,956.90/235,435.35 = 103,812.80/x
  3. Step 3: Cross multiply
    156,956.90x = 235,435.35 × 103,812.80
  4. Step 4: Simplify right side
    156,956.90x = 24,441,202,902.48
  5. Step 5: Solve for x
    x = 24,441,202,902.48/156,956.90
  6. Step 6: Final answer
    x = 155,719.20

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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.