Home / 121,531.80-182,297.70-74,292.60

Finding the Fourth Proportional to 121,531.80, 182,297.70 and 74,292.60

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Solution

The fourth proportional to 121,531.80, 182,297.70 and 74,292.60 is: 111,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,531.80 : 182,297.70 = 74,292.60 : x
  2. Step 2: Convert to fraction form
    121,531.80/182,297.70 = 74,292.60/x
  3. Step 3: Cross multiply
    121,531.80x = 182,297.70 × 74,292.60
  4. Step 4: Simplify right side
    121,531.80x = 13,543,370,107.02
  5. Step 5: Solve for x
    x = 13,543,370,107.02/121,531.80
  6. Step 6: Final answer
    x = 111,438.90

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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.