Home / 121,436.20-181,862.70-98,108.20

Finding the Fourth Proportional to 121,436.20, 181,862.70 and 98,108.20

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Solution

The fourth proportional to 121,436.20, 181,862.70 and 98,108.20 is: 146,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,436.20 : 181,862.70 = 98,108.20 : x
  2. Step 2: Convert to fraction form
    121,436.20/181,862.70 = 98,108.20/x
  3. Step 3: Cross multiply
    121,436.20x = 181,862.70 × 98,108.20
  4. Step 4: Simplify right side
    121,436.20x = 17,842,222,144.14
  5. Step 5: Solve for x
    x = 17,842,222,144.14/121,436.20
  6. Step 6: Final answer
    x = 146,926.72

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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.