Home / 105,062.16-144,959.94-67,387.44

Finding the Fourth Proportional to 105,062.16, 144,959.94 and 67,387.44

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Solution

The fourth proportional to 105,062.16, 144,959.94 and 67,387.44 is: 92,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,062.16 : 144,959.94 = 67,387.44 : x
  2. Step 2: Convert to fraction form
    105,062.16/144,959.94 = 67,387.44/x
  3. Step 3: Cross multiply
    105,062.16x = 144,959.94 × 67,387.44
  4. Step 4: Simplify right side
    105,062.16x = 9,768,479,259.15
  5. Step 5: Solve for x
    x = 9,768,479,259.15/105,062.16
  6. Step 6: Final answer
    x = 92,978.09

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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.