Home / 112,521.87-155,227.32-80,263.62

Finding the Fourth Proportional to 112,521.87, 155,227.32 and 80,263.62

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Solution

The fourth proportional to 112,521.87, 155,227.32 and 80,263.62 is: 110,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.87 : 155,227.32 = 80,263.62 : x
  2. Step 2: Convert to fraction form
    112,521.87/155,227.32 = 80,263.62/x
  3. Step 3: Cross multiply
    112,521.87x = 155,227.32 × 80,263.62
  4. Step 4: Simplify right side
    112,521.87x = 12,459,106,626.10
  5. Step 5: Solve for x
    x = 12,459,106,626.10/112,521.87
  6. Step 6: Final answer
    x = 110,726.09

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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.