Home / 109,673.28-151,347.96-61,923.78

Finding the Fourth Proportional to 109,673.28, 151,347.96 and 61,923.78

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Solution

The fourth proportional to 109,673.28, 151,347.96 and 61,923.78 is: 85,454.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,673.28 : 151,347.96 = 61,923.78 : x
  2. Step 2: Convert to fraction form
    109,673.28/151,347.96 = 61,923.78/x
  3. Step 3: Cross multiply
    109,673.28x = 151,347.96 × 61,923.78
  4. Step 4: Simplify right side
    109,673.28x = 9,372,037,778.49
  5. Step 5: Solve for x
    x = 9,372,037,778.49/109,673.28
  6. Step 6: Final answer
    x = 85,454.16

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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.