Home / 140,948.19-194,508.36-77,287.05

Finding the Fourth Proportional to 140,948.19, 194,508.36 and 77,287.05

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Solution

The fourth proportional to 140,948.19, 194,508.36 and 77,287.05 is: 106,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,948.19 : 194,508.36 = 77,287.05 : x
  2. Step 2: Convert to fraction form
    140,948.19/194,508.36 = 77,287.05/x
  3. Step 3: Cross multiply
    140,948.19x = 194,508.36 × 77,287.05
  4. Step 4: Simplify right side
    140,948.19x = 15,032,977,344.74
  5. Step 5: Solve for x
    x = 15,032,977,344.74/140,948.19
  6. Step 6: Final answer
    x = 106,656.05

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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.