Home / 121,214.67-181,574.10-98,805.21

Finding the Fourth Proportional to 121,214.67, 181,574.10 and 98,805.21

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Solution

The fourth proportional to 121,214.67, 181,574.10 and 98,805.21 is: 148,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,214.67 : 181,574.10 = 98,805.21 : x
  2. Step 2: Convert to fraction form
    121,214.67/181,574.10 = 98,805.21/x
  3. Step 3: Cross multiply
    121,214.67x = 181,574.10 × 98,805.21
  4. Step 4: Simplify right side
    121,214.67x = 17,940,467,081.06
  5. Step 5: Solve for x
    x = 17,940,467,081.06/121,214.67
  6. Step 6: Final answer
    x = 148,005.74

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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.