Home / 109,291.28-150,819.01-61,543.60

Finding the Fourth Proportional to 109,291.28, 150,819.01 and 61,543.60

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Solution

The fourth proportional to 109,291.28, 150,819.01 and 61,543.60 is: 84,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,291.28 : 150,819.01 = 61,543.60 : x
  2. Step 2: Convert to fraction form
    109,291.28/150,819.01 = 61,543.60/x
  3. Step 3: Cross multiply
    109,291.28x = 150,819.01 × 61,543.60
  4. Step 4: Simplify right side
    109,291.28x = 9,281,944,639.11
  5. Step 5: Solve for x
    x = 9,281,944,639.11/109,291.28
  6. Step 6: Final answer
    x = 84,928.51

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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.