Home / 147,939.18-204,155.79-80,871.18

Finding the Fourth Proportional to 147,939.18, 204,155.79 and 80,871.18

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Solution

The fourth proportional to 147,939.18, 204,155.79 and 80,871.18 is: 111,602.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,939.18 : 204,155.79 = 80,871.18 : x
  2. Step 2: Convert to fraction form
    147,939.18/204,155.79 = 80,871.18/x
  3. Step 3: Cross multiply
    147,939.18x = 204,155.79 × 80,871.18
  4. Step 4: Simplify right side
    147,939.18x = 16,510,319,641.13
  5. Step 5: Solve for x
    x = 16,510,319,641.13/147,939.18
  6. Step 6: Final answer
    x = 111,602.08

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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.