Home / 118,680.94-163,780.14-64,966.42

Finding the Fourth Proportional to 118,680.94, 163,780.14 and 64,966.42

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Solution

The fourth proportional to 118,680.94, 163,780.14 and 64,966.42 is: 89,653.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,680.94 : 163,780.14 = 64,966.42 : x
  2. Step 2: Convert to fraction form
    118,680.94/163,780.14 = 64,966.42/x
  3. Step 3: Cross multiply
    118,680.94x = 163,780.14 × 64,966.42
  4. Step 4: Simplify right side
    118,680.94x = 10,640,209,362.90
  5. Step 5: Solve for x
    x = 10,640,209,362.90/118,680.94
  6. Step 6: Final answer
    x = 89,653.90

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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.