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Finding the Fourth Proportional to 118,209.68, 163,126.20 and 64,494.68

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Solution

The fourth proportional to 118,209.68, 163,126.20 and 64,494.68 is: 89,000.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,209.68 : 163,126.20 = 64,494.68 : x
  2. Step 2: Convert to fraction form
    118,209.68/163,126.20 = 64,494.68/x
  3. Step 3: Cross multiply
    118,209.68x = 163,126.20 × 64,494.68
  4. Step 4: Simplify right side
    118,209.68x = 10,520,772,412.42
  5. Step 5: Solve for x
    x = 10,520,772,412.42/118,209.68
  6. Step 6: Final answer
    x = 89,000.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.