Home / 127,965.40-191,948.10-118,634.20

Finding the Fourth Proportional to 127,965.40, 191,948.10 and 118,634.20

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Solution

The fourth proportional to 127,965.40, 191,948.10 and 118,634.20 is: 177,951.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.40 : 191,948.10 = 118,634.20 : x
  2. Step 2: Convert to fraction form
    127,965.40/191,948.10 = 118,634.20/x
  3. Step 3: Cross multiply
    127,965.40x = 191,948.10 × 118,634.20
  4. Step 4: Simplify right side
    127,965.40x = 22,771,609,285.02
  5. Step 5: Solve for x
    x = 22,771,609,285.02/127,965.40
  6. Step 6: Final answer
    x = 177,951.30

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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.