Home / 121,974.20-182,669.70-98,646.20

Finding the Fourth Proportional to 121,974.20, 182,669.70 and 98,646.20

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Solution

The fourth proportional to 121,974.20, 182,669.70 and 98,646.20 is: 147,733.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,974.20 : 182,669.70 = 98,646.20 : x
  2. Step 2: Convert to fraction form
    121,974.20/182,669.70 = 98,646.20/x
  3. Step 3: Cross multiply
    121,974.20x = 182,669.70 × 98,646.20
  4. Step 4: Simplify right side
    121,974.20x = 18,019,671,760.14
  5. Step 5: Solve for x
    x = 18,019,671,760.14/121,974.20
  6. Step 6: Final answer
    x = 147,733.47

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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.