Home / 99,089.20-136,856.68-65,248.96

Finding the Fourth Proportional to 99,089.20, 136,856.68 and 65,248.96

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Solution

The fourth proportional to 99,089.20, 136,856.68 and 65,248.96 is: 90,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,089.20 : 136,856.68 = 65,248.96 : x
  2. Step 2: Convert to fraction form
    99,089.20/136,856.68 = 65,248.96/x
  3. Step 3: Cross multiply
    99,089.20x = 136,856.68 × 65,248.96
  4. Step 4: Simplify right side
    99,089.20x = 8,929,756,039.05
  5. Step 5: Solve for x
    x = 8,929,756,039.05/99,089.20
  6. Step 6: Final answer
    x = 90,118.36

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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.