Home / 112,125.85-154,747.59-64,378.17

Finding the Fourth Proportional to 112,125.85, 154,747.59 and 64,378.17

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Solution

The fourth proportional to 112,125.85, 154,747.59 and 64,378.17 is: 88,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125.85 : 154,747.59 = 64,378.17 : x
  2. Step 2: Convert to fraction form
    112,125.85/154,747.59 = 64,378.17/x
  3. Step 3: Cross multiply
    112,125.85x = 154,747.59 × 64,378.17
  4. Step 4: Simplify right side
    112,125.85x = 9,962,366,656.11
  5. Step 5: Solve for x
    x = 9,962,366,656.11/112,125.85
  6. Step 6: Final answer
    x = 88,849.87

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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.