Home / 103,416.60-142,704.78-58,084.20

Finding the Fourth Proportional to 103,416.60, 142,704.78 and 58,084.20

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Solution

The fourth proportional to 103,416.60, 142,704.78 and 58,084.20 is: 80,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,416.60 : 142,704.78 = 58,084.20 : x
  2. Step 2: Convert to fraction form
    103,416.60/142,704.78 = 58,084.20/x
  3. Step 3: Cross multiply
    103,416.60x = 142,704.78 × 58,084.20
  4. Step 4: Simplify right side
    103,416.60x = 8,288,892,982.48
  5. Step 5: Solve for x
    x = 8,288,892,982.48/103,416.60
  6. Step 6: Final answer
    x = 80,150.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.