Home / 103,744.20-155,270.70-91,302.60

Finding the Fourth Proportional to 103,744.20, 155,270.70 and 91,302.60

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Solution

The fourth proportional to 103,744.20, 155,270.70 and 91,302.60 is: 136,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,744.20 : 155,270.70 = 91,302.60 : x
  2. Step 2: Convert to fraction form
    103,744.20/155,270.70 = 91,302.60/x
  3. Step 3: Cross multiply
    103,744.20x = 155,270.70 × 91,302.60
  4. Step 4: Simplify right side
    103,744.20x = 14,176,618,613.82
  5. Step 5: Solve for x
    x = 14,176,618,613.82/103,744.20
  6. Step 6: Final answer
    x = 136,649.75

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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.