Home / 127,968.74-176,610.58-71,399.78

Finding the Fourth Proportional to 127,968.74, 176,610.58 and 71,399.78

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Solution

The fourth proportional to 127,968.74, 176,610.58 and 71,399.78 is: 98,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.74 : 176,610.58 = 71,399.78 : x
  2. Step 2: Convert to fraction form
    127,968.74/176,610.58 = 71,399.78/x
  3. Step 3: Cross multiply
    127,968.74x = 176,610.58 × 71,399.78
  4. Step 4: Simplify right side
    127,968.74x = 12,609,956,557.67
  5. Step 5: Solve for x
    x = 12,609,956,557.67/127,968.74
  6. Step 6: Final answer
    x = 98,539.35

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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.