Home / 97,928.25-135,182.33-66,140.20

Finding the Fourth Proportional to 97,928.25, 135,182.33 and 66,140.20

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Solution

The fourth proportional to 97,928.25, 135,182.33 and 66,140.20 is: 91,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,928.25 : 135,182.33 = 66,140.20 : x
  2. Step 2: Convert to fraction form
    97,928.25/135,182.33 = 66,140.20/x
  3. Step 3: Cross multiply
    97,928.25x = 135,182.33 × 66,140.20
  4. Step 4: Simplify right side
    97,928.25x = 8,940,986,349.92
  5. Step 5: Solve for x
    x = 8,940,986,349.92/97,928.25
  6. Step 6: Final answer
    x = 91,301.40

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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.