Home / 127,999.18-176,638.98-71,410.57

Finding the Fourth Proportional to 127,999.18, 176,638.98 and 71,410.57

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Solution

The fourth proportional to 127,999.18, 176,638.98 and 71,410.57 is: 98,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.18 : 176,638.98 = 71,410.57 : x
  2. Step 2: Convert to fraction form
    127,999.18/176,638.98 = 71,410.57/x
  3. Step 3: Cross multiply
    127,999.18x = 176,638.98 × 71,410.57
  4. Step 4: Simplify right side
    127,999.18x = 12,613,890,246.02
  5. Step 5: Solve for x
    x = 12,613,890,246.02/127,999.18
  6. Step 6: Final answer
    x = 98,546.65

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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.