Home / 112,865.71-155,759.73-64,471.85

Finding the Fourth Proportional to 112,865.71, 155,759.73 and 64,471.85

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Solution

The fourth proportional to 112,865.71, 155,759.73 and 64,471.85 is: 88,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,865.71 : 155,759.73 = 64,471.85 : x
  2. Step 2: Convert to fraction form
    112,865.71/155,759.73 = 64,471.85/x
  3. Step 3: Cross multiply
    112,865.71x = 155,759.73 × 64,471.85
  4. Step 4: Simplify right side
    112,865.71x = 10,042,117,948.60
  5. Step 5: Solve for x
    x = 10,042,117,948.60/112,865.71
  6. Step 6: Final answer
    x = 88,974.04

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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.