Home / 107,485.20-161,227.80-88,458.30

Finding the Fourth Proportional to 107,485.20, 161,227.80 and 88,458.30

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Solution

The fourth proportional to 107,485.20, 161,227.80 and 88,458.30 is: 132,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,485.20 : 161,227.80 = 88,458.30 : x
  2. Step 2: Convert to fraction form
    107,485.20/161,227.80 = 88,458.30/x
  3. Step 3: Cross multiply
    107,485.20x = 161,227.80 × 88,458.30
  4. Step 4: Simplify right side
    107,485.20x = 14,261,937,100.74
  5. Step 5: Solve for x
    x = 14,261,937,100.74/107,485.20
  6. Step 6: Final answer
    x = 132,687.45

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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.