Home / 140,763.51-194,253.68-77,103.59

Finding the Fourth Proportional to 140,763.51, 194,253.68 and 77,103.59

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Solution

The fourth proportional to 140,763.51, 194,253.68 and 77,103.59 is: 106,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763.51 : 194,253.68 = 77,103.59 : x
  2. Step 2: Convert to fraction form
    140,763.51/194,253.68 = 77,103.59/x
  3. Step 3: Cross multiply
    140,763.51x = 194,253.68 × 77,103.59
  4. Step 4: Simplify right side
    140,763.51x = 14,977,656,098.71
  5. Step 5: Solve for x
    x = 14,977,656,098.71/140,763.51
  6. Step 6: Final answer
    x = 106,402.97

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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.