Home / 120,278.76-180,276.67-49,157.52

Finding the Fourth Proportional to 120,278.76, 180,276.67 and 49,157.52

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Solution

The fourth proportional to 120,278.76, 180,276.67 and 49,157.52 is: 73,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,278.76 : 180,276.67 = 49,157.52 : x
  2. Step 2: Convert to fraction form
    120,278.76/180,276.67 = 49,157.52/x
  3. Step 3: Cross multiply
    120,278.76x = 180,276.67 × 49,157.52
  4. Step 4: Simplify right side
    120,278.76x = 8,861,954,011.06
  5. Step 5: Solve for x
    x = 8,861,954,011.06/120,278.76
  6. Step 6: Final answer
    x = 73,678.46

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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.