Home / 115,845.33-159,829.38-64,850.55

Finding the Fourth Proportional to 115,845.33, 159,829.38 and 64,850.55

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Solution

The fourth proportional to 115,845.33, 159,829.38 and 64,850.55 is: 89,472.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.33 : 159,829.38 = 64,850.55 : x
  2. Step 2: Convert to fraction form
    115,845.33/159,829.38 = 64,850.55/x
  3. Step 3: Cross multiply
    115,845.33x = 159,829.38 × 64,850.55
  4. Step 4: Simplify right side
    115,845.33x = 10,365,023,199.16
  5. Step 5: Solve for x
    x = 10,365,023,199.16/115,845.33
  6. Step 6: Final answer
    x = 89,472.95

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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.