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Finding the Fourth Proportional to 100,000.60, 150,000.90 and 97,667.80

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Solution

The fourth proportional to 100,000.60, 150,000.90 and 97,667.80 is: 146,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,000.60 : 150,000.90 = 97,667.80 : x
  2. Step 2: Convert to fraction form
    100,000.60/150,000.90 = 97,667.80/x
  3. Step 3: Cross multiply
    100,000.60x = 150,000.90 × 97,667.80
  4. Step 4: Simplify right side
    100,000.60x = 14,650,257,901.02
  5. Step 5: Solve for x
    x = 14,650,257,901.02/100,000.60
  6. Step 6: Final answer
    x = 146,501.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.