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Finding the Fourth Proportional to 149,000.80, 223,760.40 and 79,016.80

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Solution

The fourth proportional to 149,000.80, 223,760.40 and 79,016.80 is: 118,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,000.80 : 223,760.40 = 79,016.80 : x
  2. Step 2: Convert to fraction form
    149,000.80/223,760.40 = 79,016.80/x
  3. Step 3: Cross multiply
    149,000.80x = 223,760.40 × 79,016.80
  4. Step 4: Simplify right side
    149,000.80x = 17,680,830,774.72
  5. Step 5: Solve for x
    x = 17,680,830,774.72/149,000.80
  6. Step 6: Final answer
    x = 118,662.66

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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.