Home / 127,968.30-191,707.65-68,784.30

Finding the Fourth Proportional to 127,968.30, 191,707.65 and 68,784.30

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Solution

The fourth proportional to 127,968.30, 191,707.65 and 68,784.30 is: 103,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,968.30 : 191,707.65 = 68,784.30 : x
  2. Step 2: Convert to fraction form
    127,968.30/191,707.65 = 68,784.30/x
  3. Step 3: Cross multiply
    127,968.30x = 191,707.65 × 68,784.30
  4. Step 4: Simplify right side
    127,968.30x = 13,186,476,509.90
  5. Step 5: Solve for x
    x = 13,186,476,509.90/127,968.30
  6. Step 6: Final answer
    x = 103,044.87

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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.