Home / 112,657.38-155,501.73-64,942.44

Finding the Fourth Proportional to 112,657.38, 155,501.73 and 64,942.44

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Solution

The fourth proportional to 112,657.38, 155,501.73 and 64,942.44 is: 89,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.38 : 155,501.73 = 64,942.44 : x
  2. Step 2: Convert to fraction form
    112,657.38/155,501.73 = 64,942.44/x
  3. Step 3: Cross multiply
    112,657.38x = 155,501.73 × 64,942.44
  4. Step 4: Simplify right side
    112,657.38x = 10,098,661,770.42
  5. Step 5: Solve for x
    x = 10,098,661,770.42/112,657.38
  6. Step 6: Final answer
    x = 89,640.48

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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.