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Finding the Fourth Proportional to 118,304.55, 163,262.59 and 64,589.70

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Solution

The fourth proportional to 118,304.55, 163,262.59 and 64,589.70 is: 89,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.55 : 163,262.59 = 64,589.70 : x
  2. Step 2: Convert to fraction form
    118,304.55/163,262.59 = 64,589.70/x
  3. Step 3: Cross multiply
    118,304.55x = 163,262.59 × 64,589.70
  4. Step 4: Simplify right side
    118,304.55x = 10,545,082,160.08
  5. Step 5: Solve for x
    x = 10,545,082,160.08/118,304.55
  6. Step 6: Final answer
    x = 89,135.05

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1.5x scale

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.