Home / 143,293.46-197,766.77-103,140.14

Finding the Fourth Proportional to 143,293.46, 197,766.77 and 103,140.14

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Solution

The fourth proportional to 143,293.46, 197,766.77 and 103,140.14 is: 142,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,293.46 : 197,766.77 = 103,140.14 : x
  2. Step 2: Convert to fraction form
    143,293.46/197,766.77 = 103,140.14/x
  3. Step 3: Cross multiply
    143,293.46x = 197,766.77 × 103,140.14
  4. Step 4: Simplify right side
    143,293.46x = 20,397,690,840.61
  5. Step 5: Solve for x
    x = 20,397,690,840.61/143,293.46
  6. Step 6: Final answer
    x = 142,349.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.