Home / 98,531.49-135,831.72-70,187.97

Finding the Fourth Proportional to 98,531.49, 135,831.72 and 70,187.97

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Solution

The fourth proportional to 98,531.49, 135,831.72 and 70,187.97 is: 96,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,531.49 : 135,831.72 = 70,187.97 : x
  2. Step 2: Convert to fraction form
    98,531.49/135,831.72 = 70,187.97/x
  3. Step 3: Cross multiply
    98,531.49x = 135,831.72 × 70,187.97
  4. Step 4: Simplify right side
    98,531.49x = 9,533,752,688.41
  5. Step 5: Solve for x
    x = 9,533,752,688.41/98,531.49
  6. Step 6: Final answer
    x = 96,758.43

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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.