Home / 127,456.72-191,210.60-71,376.58

Finding the Fourth Proportional to 127,456.72, 191,210.60 and 71,376.58

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Solution

The fourth proportional to 127,456.72, 191,210.60 and 71,376.58 is: 107,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,456.72 : 191,210.60 = 71,376.58 : x
  2. Step 2: Convert to fraction form
    127,456.72/191,210.60 = 71,376.58/x
  3. Step 3: Cross multiply
    127,456.72x = 191,210.60 × 71,376.58
  4. Step 4: Simplify right side
    127,456.72x = 13,647,958,687.75
  5. Step 5: Solve for x
    x = 13,647,958,687.75/127,456.72
  6. Step 6: Final answer
    x = 107,079.16

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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.