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Finding the Fourth Proportional to 118,346.27, 163,317.02 and 64,631.30

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Solution

The fourth proportional to 118,346.27, 163,317.02 and 64,631.30 is: 89,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346.27 : 163,317.02 = 64,631.30 : x
  2. Step 2: Convert to fraction form
    118,346.27/163,317.02 = 64,631.30/x
  3. Step 3: Cross multiply
    118,346.27x = 163,317.02 × 64,631.30
  4. Step 4: Simplify right side
    118,346.27x = 10,555,390,174.98
  5. Step 5: Solve for x
    x = 10,555,390,174.98/118,346.27
  6. Step 6: Final answer
    x = 89,190.73

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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.