Home / 149,531.50-223,343.95-135,278.20

Finding the Fourth Proportional to 149,531.50, 223,343.95 and 135,278.20

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Solution

The fourth proportional to 149,531.50, 223,343.95 and 135,278.20 is: 202,054.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,531.50 : 223,343.95 = 135,278.20 : x
  2. Step 2: Convert to fraction form
    149,531.50/223,343.95 = 135,278.20/x
  3. Step 3: Cross multiply
    149,531.50x = 223,343.95 × 135,278.20
  4. Step 4: Simplify right side
    149,531.50x = 30,213,567,536.89
  5. Step 5: Solve for x
    x = 30,213,567,536.89/149,531.50
  6. Step 6: Final answer
    x = 202,054.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.