Home / 115,439.15-173,158.73-103,629.35

Finding the Fourth Proportional to 115,439.15, 173,158.73 and 103,629.35

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Solution

The fourth proportional to 115,439.15, 173,158.73 and 103,629.35 is: 155,444.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,439.15 : 173,158.73 = 103,629.35 : x
  2. Step 2: Convert to fraction form
    115,439.15/173,158.73 = 103,629.35/x
  3. Step 3: Cross multiply
    115,439.15x = 173,158.73 × 103,629.35
  4. Step 4: Simplify right side
    115,439.15x = 17,944,326,636.73
  5. Step 5: Solve for x
    x = 17,944,326,636.73/115,439.15
  6. Step 6: Final answer
    x = 155,444.03

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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.