Home / 178,869.20-268,303.80-80,565.20

Finding the Fourth Proportional to 178,869.20, 268,303.80 and 80,565.20

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Solution

The fourth proportional to 178,869.20, 268,303.80 and 80,565.20 is: 120,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,869.20 : 268,303.80 = 80,565.20 : x
  2. Step 2: Convert to fraction form
    178,869.20/268,303.80 = 80,565.20/x
  3. Step 3: Cross multiply
    178,869.20x = 268,303.80 × 80,565.20
  4. Step 4: Simplify right side
    178,869.20x = 21,615,949,307.76
  5. Step 5: Solve for x
    x = 21,615,949,307.76/178,869.20
  6. Step 6: Final answer
    x = 120,847.80

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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.