Home / 103,766.28-143,197.62-61,345.80

Finding the Fourth Proportional to 103,766.28, 143,197.62 and 61,345.80

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Solution

The fourth proportional to 103,766.28, 143,197.62 and 61,345.80 is: 84,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,766.28 : 143,197.62 = 61,345.80 : x
  2. Step 2: Convert to fraction form
    103,766.28/143,197.62 = 61,345.80/x
  3. Step 3: Cross multiply
    103,766.28x = 143,197.62 × 61,345.80
  4. Step 4: Simplify right side
    103,766.28x = 8,784,572,557.00
  5. Step 5: Solve for x
    x = 8,784,572,557.00/103,766.28
  6. Step 6: Final answer
    x = 84,657.29

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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.