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Finding the Fourth Proportional to 156,715.80, 235,114.23 and 67,948.80

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Solution

The fourth proportional to 156,715.80, 235,114.23 and 67,948.80 is: 101,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,715.80 : 235,114.23 = 67,948.80 : x
  2. Step 2: Convert to fraction form
    156,715.80/235,114.23 = 67,948.80/x
  3. Step 3: Cross multiply
    156,715.80x = 235,114.23 × 67,948.80
  4. Step 4: Simplify right side
    156,715.80x = 15,975,729,791.42
  5. Step 5: Solve for x
    x = 15,975,729,791.42/156,715.80
  6. Step 6: Final answer
    x = 101,940.77

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1.5x scale

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.