Home / 86,299.20-118,793.52-74,401.92

Finding the Fourth Proportional to 86,299.20, 118,793.52 and 74,401.92

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Solution

The fourth proportional to 86,299.20, 118,793.52 and 74,401.92 is: 102,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,299.20 : 118,793.52 = 74,401.92 : x
  2. Step 2: Convert to fraction form
    86,299.20/118,793.52 = 74,401.92/x
  3. Step 3: Cross multiply
    86,299.20x = 118,793.52 × 74,401.92
  4. Step 4: Simplify right side
    86,299.20x = 8,838,465,971.56
  5. Step 5: Solve for x
    x = 8,838,465,971.56/86,299.20
  6. Step 6: Final answer
    x = 102,416.55

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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.