Home / 178,977.60-268,159.20-85,281.60

Finding the Fourth Proportional to 178,977.60, 268,159.20 and 85,281.60

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Solution

The fourth proportional to 178,977.60, 268,159.20 and 85,281.60 is: 127,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,977.60 : 268,159.20 = 85,281.60 : x
  2. Step 2: Convert to fraction form
    178,977.60/268,159.20 = 85,281.60/x
  3. Step 3: Cross multiply
    178,977.60x = 268,159.20 × 85,281.60
  4. Step 4: Simplify right side
    178,977.60x = 22,869,045,630.72
  5. Step 5: Solve for x
    x = 22,869,045,630.72/178,977.60
  6. Step 6: Final answer
    x = 127,776.02

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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.