Home / 121,213.67-181,572.60-98,804.21

Finding the Fourth Proportional to 121,213.67, 181,572.60 and 98,804.21

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Solution

The fourth proportional to 121,213.67, 181,572.60 and 98,804.21 is: 148,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,213.67 : 181,572.60 = 98,804.21 : x
  2. Step 2: Convert to fraction form
    121,213.67/181,572.60 = 98,804.21/x
  3. Step 3: Cross multiply
    121,213.67x = 181,572.60 × 98,804.21
  4. Step 4: Simplify right side
    121,213.67x = 17,940,137,300.65
  5. Step 5: Solve for x
    x = 17,940,137,300.65/121,213.67
  6. Step 6: Final answer
    x = 148,004.24

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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.