Home / 112,613.24-155,533.82-76,740.97

Finding the Fourth Proportional to 112,613.24, 155,533.82 and 76,740.97

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Solution

The fourth proportional to 112,613.24, 155,533.82 and 76,740.97 is: 105,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,613.24 : 155,533.82 = 76,740.97 : x
  2. Step 2: Convert to fraction form
    112,613.24/155,533.82 = 76,740.97/x
  3. Step 3: Cross multiply
    112,613.24x = 155,533.82 × 76,740.97
  4. Step 4: Simplify right side
    112,613.24x = 11,935,815,830.90
  5. Step 5: Solve for x
    x = 11,935,815,830.90/112,613.24
  6. Step 6: Final answer
    x = 105,989.46

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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.