Home / 202,788.80-279,868.72-112,151.60

Finding the Fourth Proportional to 202,788.80, 279,868.72 and 112,151.60

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Solution

The fourth proportional to 202,788.80, 279,868.72 and 112,151.60 is: 154,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,788.80 : 279,868.72 = 112,151.60 : x
  2. Step 2: Convert to fraction form
    202,788.80/279,868.72 = 112,151.60/x
  3. Step 3: Cross multiply
    202,788.80x = 279,868.72 × 112,151.60
  4. Step 4: Simplify right side
    202,788.80x = 31,387,724,737.95
  5. Step 5: Solve for x
    x = 31,387,724,737.95/202,788.80
  6. Step 6: Final answer
    x = 154,780.37

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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.