Home / 148,837.78-205,398.03-80,855.02

Finding the Fourth Proportional to 148,837.78, 205,398.03 and 80,855.02

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Solution

The fourth proportional to 148,837.78, 205,398.03 and 80,855.02 is: 111,580.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,837.78 : 205,398.03 = 80,855.02 : x
  2. Step 2: Convert to fraction form
    148,837.78/205,398.03 = 80,855.02/x
  3. Step 3: Cross multiply
    148,837.78x = 205,398.03 × 80,855.02
  4. Step 4: Simplify right side
    148,837.78x = 16,607,461,823.61
  5. Step 5: Solve for x
    x = 16,607,461,823.61/148,837.78
  6. Step 6: Final answer
    x = 111,580.96

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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.