Home / 98,062.48-135,161.76-75,084.40

Finding the Fourth Proportional to 98,062.48, 135,161.76 and 75,084.40

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Solution

The fourth proportional to 98,062.48, 135,161.76 and 75,084.40 is: 103,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,062.48 : 135,161.76 = 75,084.40 : x
  2. Step 2: Convert to fraction form
    98,062.48/135,161.76 = 75,084.40/x
  3. Step 3: Cross multiply
    98,062.48x = 135,161.76 × 75,084.40
  4. Step 4: Simplify right side
    98,062.48x = 10,148,539,652.54
  5. Step 5: Solve for x
    x = 10,148,539,652.54/98,062.48
  6. Step 6: Final answer
    x = 103,490.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.