Home / 140,312.40-193,694.82-89,394.96

Finding the Fourth Proportional to 140,312.40, 193,694.82 and 89,394.96

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Solution

The fourth proportional to 140,312.40, 193,694.82 and 89,394.96 is: 123,405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,312.40 : 193,694.82 = 89,394.96 : x
  2. Step 2: Convert to fraction form
    140,312.40/193,694.82 = 89,394.96/x
  3. Step 3: Cross multiply
    140,312.40x = 193,694.82 × 89,394.96
  4. Step 4: Simplify right side
    140,312.40x = 17,315,340,686.11
  5. Step 5: Solve for x
    x = 17,315,340,686.11/140,312.40
  6. Step 6: Final answer
    x = 123,405.63

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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.