Home / 121,215.67-181,575.60-98,806.21

Finding the Fourth Proportional to 121,215.67, 181,575.60 and 98,806.21

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Solution

The fourth proportional to 121,215.67, 181,575.60 and 98,806.21 is: 148,007.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,215.67 : 181,575.60 = 98,806.21 : x
  2. Step 2: Convert to fraction form
    121,215.67/181,575.60 = 98,806.21/x
  3. Step 3: Cross multiply
    121,215.67x = 181,575.60 × 98,806.21
  4. Step 4: Simplify right side
    121,215.67x = 17,940,796,864.48
  5. Step 5: Solve for x
    x = 17,940,796,864.48/121,215.67
  6. Step 6: Final answer
    x = 148,007.24

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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.