Home / 98,084.71-135,322.07-64,112.80

Finding the Fourth Proportional to 98,084.71, 135,322.07 and 64,112.80

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Solution

The fourth proportional to 98,084.71, 135,322.07 and 64,112.80 is: 88,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,084.71 : 135,322.07 = 64,112.80 : x
  2. Step 2: Convert to fraction form
    98,084.71/135,322.07 = 64,112.80/x
  3. Step 3: Cross multiply
    98,084.71x = 135,322.07 × 64,112.80
  4. Step 4: Simplify right side
    98,084.71x = 8,675,876,809.50
  5. Step 5: Solve for x
    x = 8,675,876,809.50/98,084.71
  6. Step 6: Final answer
    x = 88,452.90

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1.5x scale

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.