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Finding the Fourth Proportional to 118,731, 163,849.04 and 64,283.74

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Solution

The fourth proportional to 118,731, 163,849.04 and 64,283.74 is: 88,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,731 : 163,849.04 = 64,283.74 : x
  2. Step 2: Convert to fraction form
    118,731/163,849.04 = 64,283.74/x
  3. Step 3: Cross multiply
    118,731x = 163,849.04 × 64,283.74
  4. Step 4: Simplify right side
    118,731x = 10,532,829,086.61
  5. Step 5: Solve for x
    x = 10,532,829,086.61/118,731
  6. Step 6: Final answer
    x = 88,711.70

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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.