Home / 127,966.23-191,949.30-68,720.40

Finding the Fourth Proportional to 127,966.23, 191,949.30 and 68,720.40

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Solution

The fourth proportional to 127,966.23, 191,949.30 and 68,720.40 is: 103,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,966.23 : 191,949.30 = 68,720.40 : x
  2. Step 2: Convert to fraction form
    127,966.23/191,949.30 = 68,720.40/x
  3. Step 3: Cross multiply
    127,966.23x = 191,949.30 × 68,720.40
  4. Step 4: Simplify right side
    127,966.23x = 13,190,832,675.72
  5. Step 5: Solve for x
    x = 13,190,832,675.72/127,966.23
  6. Step 6: Final answer
    x = 103,080.58

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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.