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Finding the Fourth Proportional to 119,657.80, 179,452.12 and 40,770.28

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Solution

The fourth proportional to 119,657.80, 179,452.12 and 40,770.28 is: 61,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,657.80 : 179,452.12 = 40,770.28 : x
  2. Step 2: Convert to fraction form
    119,657.80/179,452.12 = 40,770.28/x
  3. Step 3: Cross multiply
    119,657.80x = 179,452.12 × 40,770.28
  4. Step 4: Simplify right side
    119,657.80x = 7,316,313,178.99
  5. Step 5: Solve for x
    x = 7,316,313,178.99/119,657.80
  6. Step 6: Final answer
    x = 61,143.64

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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.