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Finding the Fourth Proportional to 156,690.70, 235,036.05 and 149,865.10

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Solution

The fourth proportional to 156,690.70, 235,036.05 and 149,865.10 is: 224,797.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,690.70 : 235,036.05 = 149,865.10 : x
  2. Step 2: Convert to fraction form
    156,690.70/235,036.05 = 149,865.10/x
  3. Step 3: Cross multiply
    156,690.70x = 235,036.05 × 149,865.10
  4. Step 4: Simplify right side
    156,690.70x = 35,223,701,136.86
  5. Step 5: Solve for x
    x = 35,223,701,136.86/156,690.70
  6. Step 6: Final answer
    x = 224,797.65

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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.