Home / 112,234.05-154,909.58-64,515.12

Finding the Fourth Proportional to 112,234.05, 154,909.58 and 64,515.12

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Solution

The fourth proportional to 112,234.05, 154,909.58 and 64,515.12 is: 89,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,234.05 : 154,909.58 = 64,515.12 : x
  2. Step 2: Convert to fraction form
    112,234.05/154,909.58 = 64,515.12/x
  3. Step 3: Cross multiply
    112,234.05x = 154,909.58 × 64,515.12
  4. Step 4: Simplify right side
    112,234.05x = 9,994,010,142.85
  5. Step 5: Solve for x
    x = 9,994,010,142.85/112,234.05
  6. Step 6: Final answer
    x = 89,046.15

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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.