Home / 121,557.40-182,256.90-109,115.80

Finding the Fourth Proportional to 121,557.40, 182,256.90 and 109,115.80

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Solution

The fourth proportional to 121,557.40, 182,256.90 and 109,115.80 is: 163,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,557.40 : 182,256.90 = 109,115.80 : x
  2. Step 2: Convert to fraction form
    121,557.40/182,256.90 = 109,115.80/x
  3. Step 3: Cross multiply
    121,557.40x = 182,256.90 × 109,115.80
  4. Step 4: Simplify right side
    121,557.40x = 19,887,107,449.02
  5. Step 5: Solve for x
    x = 19,887,107,449.02/121,557.40
  6. Step 6: Final answer
    x = 163,602.61

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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.