Home / 118,694.28-163,792.82-64,981.56

Finding the Fourth Proportional to 118,694.28, 163,792.82 and 64,981.56

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Solution

The fourth proportional to 118,694.28, 163,792.82 and 64,981.56 is: 89,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,694.28 : 163,792.82 = 64,981.56 : x
  2. Step 2: Convert to fraction form
    118,694.28/163,792.82 = 64,981.56/x
  3. Step 3: Cross multiply
    118,694.28x = 163,792.82 × 64,981.56
  4. Step 4: Simplify right side
    118,694.28x = 10,643,512,960.40
  5. Step 5: Solve for x
    x = 10,643,512,960.40/118,694.28
  6. Step 6: Final answer
    x = 89,671.66

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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.