Home / 99,265.23-148,904.33-72,690.75

Finding the Fourth Proportional to 99,265.23, 148,904.33 and 72,690.75

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Solution

The fourth proportional to 99,265.23, 148,904.33 and 72,690.75 is: 109,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,265.23 : 148,904.33 = 72,690.75 : x
  2. Step 2: Convert to fraction form
    99,265.23/148,904.33 = 72,690.75/x
  3. Step 3: Cross multiply
    99,265.23x = 148,904.33 × 72,690.75
  4. Step 4: Simplify right side
    99,265.23x = 10,823,967,062.49
  5. Step 5: Solve for x
    x = 10,823,967,062.49/99,265.23
  6. Step 6: Final answer
    x = 109,040.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.