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Finding the Fourth Proportional to 178,130.79, 267,199.53 and 83,308.55

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Solution

The fourth proportional to 178,130.79, 267,199.53 and 83,308.55 is: 124,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,130.79 : 267,199.53 = 83,308.55 : x
  2. Step 2: Convert to fraction form
    178,130.79/267,199.53 = 83,308.55/x
  3. Step 3: Cross multiply
    178,130.79x = 267,199.53 × 83,308.55
  4. Step 4: Simplify right side
    178,130.79x = 22,260,003,756.58
  5. Step 5: Solve for x
    x = 22,260,003,756.58/178,130.79
  6. Step 6: Final answer
    x = 124,964.38

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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.