Home / 103,881.02-155,766.08-53,910.80

Finding the Fourth Proportional to 103,881.02, 155,766.08 and 53,910.80

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Solution

The fourth proportional to 103,881.02, 155,766.08 and 53,910.80 is: 80,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,881.02 : 155,766.08 = 53,910.80 : x
  2. Step 2: Convert to fraction form
    103,881.02/155,766.08 = 53,910.80/x
  3. Step 3: Cross multiply
    103,881.02x = 155,766.08 × 53,910.80
  4. Step 4: Simplify right side
    103,881.02x = 8,397,473,985.66
  5. Step 5: Solve for x
    x = 8,397,473,985.66/103,881.02
  6. Step 6: Final answer
    x = 80,837.42

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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.