Home / 112,816.91-155,587.96-69,789.56

Finding the Fourth Proportional to 112,816.91, 155,587.96 and 69,789.56

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Solution

The fourth proportional to 112,816.91, 155,587.96 and 69,789.56 is: 96,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,816.91 : 155,587.96 = 69,789.56 : x
  2. Step 2: Convert to fraction form
    112,816.91/155,587.96 = 69,789.56/x
  3. Step 3: Cross multiply
    112,816.91x = 155,587.96 × 69,789.56
  4. Step 4: Simplify right side
    112,816.91x = 10,858,415,869.26
  5. Step 5: Solve for x
    x = 10,858,415,869.26/112,816.91
  6. Step 6: Final answer
    x = 96,248.13

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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.