Home / 112,626.82-155,442.47-64,228.85

Finding the Fourth Proportional to 112,626.82, 155,442.47 and 64,228.85

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Solution

The fourth proportional to 112,626.82, 155,442.47 and 64,228.85 is: 88,645.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,626.82 : 155,442.47 = 64,228.85 : x
  2. Step 2: Convert to fraction form
    112,626.82/155,442.47 = 64,228.85/x
  3. Step 3: Cross multiply
    112,626.82x = 155,442.47 × 64,228.85
  4. Step 4: Simplify right side
    112,626.82x = 9,983,890,754.46
  5. Step 5: Solve for x
    x = 9,983,890,754.46/112,626.82
  6. Step 6: Final answer
    x = 88,645.77

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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.