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Finding the Fourth Proportional to 104,732.80, 157,099.20 and 103,177.60

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Solution

The fourth proportional to 104,732.80, 157,099.20 and 103,177.60 is: 154,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,732.80 : 157,099.20 = 103,177.60 : x
  2. Step 2: Convert to fraction form
    104,732.80/157,099.20 = 103,177.60/x
  3. Step 3: Cross multiply
    104,732.80x = 157,099.20 × 103,177.60
  4. Step 4: Simplify right side
    104,732.80x = 16,209,118,417.92
  5. Step 5: Solve for x
    x = 16,209,118,417.92/104,732.80
  6. Step 6: Final answer
    x = 154,766.40

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1.5x scale

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.