Home / 112,376.43-155,084.19-64,629.81

Finding the Fourth Proportional to 112,376.43, 155,084.19 and 64,629.81

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Solution

The fourth proportional to 112,376.43, 155,084.19 and 64,629.81 is: 89,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,376.43 : 155,084.19 = 64,629.81 : x
  2. Step 2: Convert to fraction form
    112,376.43/155,084.19 = 64,629.81/x
  3. Step 3: Cross multiply
    112,376.43x = 155,084.19 × 64,629.81
  4. Step 4: Simplify right side
    112,376.43x = 10,023,061,733.70
  5. Step 5: Solve for x
    x = 10,023,061,733.70/112,376.43
  6. Step 6: Final answer
    x = 89,191.85

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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.