Home / 118,787.70-163,927.08-65,074.66

Finding the Fourth Proportional to 118,787.70, 163,927.08 and 65,074.66

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Solution

The fourth proportional to 118,787.70, 163,927.08 and 65,074.66 is: 89,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,787.70 : 163,927.08 = 65,074.66 : x
  2. Step 2: Convert to fraction form
    118,787.70/163,927.08 = 65,074.66/x
  3. Step 3: Cross multiply
    118,787.70x = 163,927.08 × 65,074.66
  4. Step 4: Simplify right side
    118,787.70x = 10,667,498,995.79
  5. Step 5: Solve for x
    x = 10,667,498,995.79/118,787.70
  6. Step 6: Final answer
    x = 89,803.06

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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.