Home / 258,132.06-387,139.69-98,150.93

Finding the Fourth Proportional to 258,132.06, 387,139.69 and 98,150.93

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Solution

The fourth proportional to 258,132.06, 387,139.69 and 98,150.93 is: 147,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,132.06 : 387,139.69 = 98,150.93 : x
  2. Step 2: Convert to fraction form
    258,132.06/387,139.69 = 98,150.93/x
  3. Step 3: Cross multiply
    258,132.06x = 387,139.69 × 98,150.93
  4. Step 4: Simplify right side
    258,132.06x = 37,998,120,613.41
  5. Step 5: Solve for x
    x = 37,998,120,613.41/258,132.06
  6. Step 6: Final answer
    x = 147,204.19

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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.