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Finding the Fourth Proportional to 134,670.60, 202,005.90 and 103,177.80

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Solution

The fourth proportional to 134,670.60, 202,005.90 and 103,177.80 is: 154,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,670.60 : 202,005.90 = 103,177.80 : x
  2. Step 2: Convert to fraction form
    134,670.60/202,005.90 = 103,177.80/x
  3. Step 3: Cross multiply
    134,670.60x = 202,005.90 × 103,177.80
  4. Step 4: Simplify right side
    134,670.60x = 20,842,524,349.02
  5. Step 5: Solve for x
    x = 20,842,524,349.02/134,670.60
  6. Step 6: Final answer
    x = 154,766.70

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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.