Home / 177,608.60-266,445.30-72,438.20

Finding the Fourth Proportional to 177,608.60, 266,445.30 and 72,438.20

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Solution

The fourth proportional to 177,608.60, 266,445.30 and 72,438.20 is: 108,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,608.60 : 266,445.30 = 72,438.20 : x
  2. Step 2: Convert to fraction form
    177,608.60/266,445.30 = 72,438.20/x
  3. Step 3: Cross multiply
    177,608.60x = 266,445.30 × 72,438.20
  4. Step 4: Simplify right side
    177,608.60x = 19,300,817,930.46
  5. Step 5: Solve for x
    x = 19,300,817,930.46/177,608.60
  6. Step 6: Final answer
    x = 108,670.51

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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.