Home / 109,542.79-151,176.11-61,795.11

Finding the Fourth Proportional to 109,542.79, 151,176.11 and 61,795.11

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Solution

The fourth proportional to 109,542.79, 151,176.11 and 61,795.11 is: 85,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,542.79 : 151,176.11 = 61,795.11 : x
  2. Step 2: Convert to fraction form
    109,542.79/151,176.11 = 61,795.11/x
  3. Step 3: Cross multiply
    109,542.79x = 151,176.11 × 61,795.11
  4. Step 4: Simplify right side
    109,542.79x = 9,341,944,604.76
  5. Step 5: Solve for x
    x = 9,341,944,604.76/109,542.79
  6. Step 6: Final answer
    x = 85,281.24

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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.