Home / 112,617.36-155,446.56-64,902.48

Finding the Fourth Proportional to 112,617.36, 155,446.56 and 64,902.48

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Solution

The fourth proportional to 112,617.36, 155,446.56 and 64,902.48 is: 89,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,617.36 : 155,446.56 = 64,902.48 : x
  2. Step 2: Convert to fraction form
    112,617.36/155,446.56 = 64,902.48/x
  3. Step 3: Cross multiply
    112,617.36x = 155,446.56 × 64,902.48
  4. Step 4: Simplify right side
    112,617.36x = 10,088,867,251.47
  5. Step 5: Solve for x
    x = 10,088,867,251.47/112,617.36
  6. Step 6: Final answer
    x = 89,585.36

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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.