Home / 119,947.64-165,541.78-99,768.92

Finding the Fourth Proportional to 119,947.64, 165,541.78 and 99,768.92

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Solution

The fourth proportional to 119,947.64, 165,541.78 and 99,768.92 is: 137,692.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,947.64 : 165,541.78 = 99,768.92 : x
  2. Step 2: Convert to fraction form
    119,947.64/165,541.78 = 99,768.92/x
  3. Step 3: Cross multiply
    119,947.64x = 165,541.78 × 99,768.92
  4. Step 4: Simplify right side
    119,947.64x = 16,515,924,605.48
  5. Step 5: Solve for x
    x = 16,515,924,605.48/119,947.64
  6. Step 6: Final answer
    x = 137,692.78

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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.