Home / 165,143.12-247,651.29-70,313.18

Finding the Fourth Proportional to 165,143.12, 247,651.29 and 70,313.18

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Solution

The fourth proportional to 165,143.12, 247,651.29 and 70,313.18 is: 105,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,143.12 : 247,651.29 = 70,313.18 : x
  2. Step 2: Convert to fraction form
    165,143.12/247,651.29 = 70,313.18/x
  3. Step 3: Cross multiply
    165,143.12x = 247,651.29 × 70,313.18
  4. Step 4: Simplify right side
    165,143.12x = 17,413,149,731.00
  5. Step 5: Solve for x
    x = 17,413,149,731.00/165,143.12
  6. Step 6: Final answer
    x = 105,442.78

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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.