Home / 127,407.44-175,899-84,423.20

Finding the Fourth Proportional to 127,407.44, 175,899 and 84,423.20

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Solution

The fourth proportional to 127,407.44, 175,899 and 84,423.20 is: 116,554.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,407.44 : 175,899 = 84,423.20 : x
  2. Step 2: Convert to fraction form
    127,407.44/175,899 = 84,423.20/x
  3. Step 3: Cross multiply
    127,407.44x = 175,899 × 84,423.20
  4. Step 4: Simplify right side
    127,407.44x = 14,849,956,456.80
  5. Step 5: Solve for x
    x = 14,849,956,456.80/127,407.44
  6. Step 6: Final answer
    x = 116,554.86

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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.