Home / 148,914.05-205,502.97-80,931.02

Finding the Fourth Proportional to 148,914.05, 205,502.97 and 80,931.02

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Solution

The fourth proportional to 148,914.05, 205,502.97 and 80,931.02 is: 111,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,914.05 : 205,502.97 = 80,931.02 : x
  2. Step 2: Convert to fraction form
    148,914.05/205,502.97 = 80,931.02/x
  3. Step 3: Cross multiply
    148,914.05x = 205,502.97 × 80,931.02
  4. Step 4: Simplify right side
    148,914.05x = 16,631,563,947.61
  5. Step 5: Solve for x
    x = 16,631,563,947.61/148,914.05
  6. Step 6: Final answer
    x = 111,685.66

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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.