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Finding the Fourth Proportional to 114,423.70, 171,635.55 and 72,433.30

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Solution

The fourth proportional to 114,423.70, 171,635.55 and 72,433.30 is: 108,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,423.70 : 171,635.55 = 72,433.30 : x
  2. Step 2: Convert to fraction form
    114,423.70/171,635.55 = 72,433.30/x
  3. Step 3: Cross multiply
    114,423.70x = 171,635.55 × 72,433.30
  4. Step 4: Simplify right side
    114,423.70x = 12,432,129,283.82
  5. Step 5: Solve for x
    x = 12,432,129,283.82/114,423.70
  6. Step 6: Final answer
    x = 108,649.95

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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.