Home / 121,523.40-182,285.10-74,284.20

Finding the Fourth Proportional to 121,523.40, 182,285.10 and 74,284.20

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Solution

The fourth proportional to 121,523.40, 182,285.10 and 74,284.20 is: 111,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.40 : 182,285.10 = 74,284.20 : x
  2. Step 2: Convert to fraction form
    121,523.40/182,285.10 = 74,284.20/x
  3. Step 3: Cross multiply
    121,523.40x = 182,285.10 × 74,284.20
  4. Step 4: Simplify right side
    121,523.40x = 13,540,902,825.42
  5. Step 5: Solve for x
    x = 13,540,902,825.42/121,523.40
  6. Step 6: Final answer
    x = 111,426.30

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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.