Home / 97,928.47-135,182.63-66,140.43

Finding the Fourth Proportional to 97,928.47, 135,182.63 and 66,140.43

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Solution

The fourth proportional to 97,928.47, 135,182.63 and 66,140.43 is: 91,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,928.47 : 135,182.63 = 66,140.43 : x
  2. Step 2: Convert to fraction form
    97,928.47/135,182.63 = 66,140.43/x
  3. Step 3: Cross multiply
    97,928.47x = 135,182.63 × 66,140.43
  4. Step 4: Simplify right side
    97,928.47x = 8,941,037,276.73
  5. Step 5: Solve for x
    x = 8,941,037,276.73/97,928.47
  6. Step 6: Final answer
    x = 91,301.72

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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.