Home / 115,931.20-173,896.80-103,465.30

Finding the Fourth Proportional to 115,931.20, 173,896.80 and 103,465.30

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Solution

The fourth proportional to 115,931.20, 173,896.80 and 103,465.30 is: 155,197.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,931.20 : 173,896.80 = 103,465.30 : x
  2. Step 2: Convert to fraction form
    115,931.20/173,896.80 = 103,465.30/x
  3. Step 3: Cross multiply
    115,931.20x = 173,896.80 × 103,465.30
  4. Step 4: Simplify right side
    115,931.20x = 17,992,284,581.04
  5. Step 5: Solve for x
    x = 17,992,284,581.04/115,931.20
  6. Step 6: Final answer
    x = 155,197.95

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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.