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Finding the Fourth Proportional to 100,000.60, 150,000.90 and 88,941.40

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Solution

The fourth proportional to 100,000.60, 150,000.90 and 88,941.40 is: 133,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,000.60 : 150,000.90 = 88,941.40 : x
  2. Step 2: Convert to fraction form
    100,000.60/150,000.90 = 88,941.40/x
  3. Step 3: Cross multiply
    100,000.60x = 150,000.90 × 88,941.40
  4. Step 4: Simplify right side
    100,000.60x = 13,341,290,047.26
  5. Step 5: Solve for x
    x = 13,341,290,047.26/100,000.60
  6. Step 6: Final answer
    x = 133,412.10

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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.