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Finding the Fourth Proportional to 149,070.80, 223,865.40 and 79,086.80

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Solution

The fourth proportional to 149,070.80, 223,865.40 and 79,086.80 is: 118,767.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,070.80 : 223,865.40 = 79,086.80 : x
  2. Step 2: Convert to fraction form
    149,070.80/223,865.40 = 79,086.80/x
  3. Step 3: Cross multiply
    149,070.80x = 223,865.40 × 79,086.80
  4. Step 4: Simplify right side
    149,070.80x = 17,704,798,116.72
  5. Step 5: Solve for x
    x = 17,704,798,116.72/149,070.80
  6. Step 6: Final answer
    x = 118,767.71

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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.