Home / 127,870.04-191,805.24-39,123.20

Finding the Fourth Proportional to 127,870.04, 191,805.24 and 39,123.20

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Solution

The fourth proportional to 127,870.04, 191,805.24 and 39,123.20 is: 58,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,870.04 : 191,805.24 = 39,123.20 : x
  2. Step 2: Convert to fraction form
    127,870.04/191,805.24 = 39,123.20/x
  3. Step 3: Cross multiply
    127,870.04x = 191,805.24 × 39,123.20
  4. Step 4: Simplify right side
    127,870.04x = 7,504,034,765.57
  5. Step 5: Solve for x
    x = 7,504,034,765.57/127,870.04
  6. Step 6: Final answer
    x = 58,684.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.