Home / 99,155.64-136,631.34-92,155.32

Finding the Fourth Proportional to 99,155.64, 136,631.34 and 92,155.32

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Solution

The fourth proportional to 99,155.64, 136,631.34 and 92,155.32 is: 126,985.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,155.64 : 136,631.34 = 92,155.32 : x
  2. Step 2: Convert to fraction form
    99,155.64/136,631.34 = 92,155.32/x
  3. Step 3: Cross multiply
    99,155.64x = 136,631.34 × 92,155.32
  4. Step 4: Simplify right side
    99,155.64x = 12,591,304,859.73
  5. Step 5: Solve for x
    x = 12,591,304,859.73/99,155.64
  6. Step 6: Final answer
    x = 126,985.26

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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.