Home / 100,528.38-150,040.35-98,867.68

Finding the Fourth Proportional to 100,528.38, 150,040.35 and 98,867.68

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Solution

The fourth proportional to 100,528.38, 150,040.35 and 98,867.68 is: 147,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,528.38 : 150,040.35 = 98,867.68 : x
  2. Step 2: Convert to fraction form
    100,528.38/150,040.35 = 98,867.68/x
  3. Step 3: Cross multiply
    100,528.38x = 150,040.35 × 98,867.68
  4. Step 4: Simplify right side
    100,528.38x = 14,834,140,935.79
  5. Step 5: Solve for x
    x = 14,834,140,935.79/100,528.38
  6. Step 6: Final answer
    x = 147,561.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.