Home / 148,799.72-205,345.10-80,818.02

Finding the Fourth Proportional to 148,799.72, 205,345.10 and 80,818.02

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Solution

The fourth proportional to 148,799.72, 205,345.10 and 80,818.02 is: 111,529.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,799.72 : 205,345.10 = 80,818.02 : x
  2. Step 2: Convert to fraction form
    148,799.72/205,345.10 = 80,818.02/x
  3. Step 3: Cross multiply
    148,799.72x = 205,345.10 × 80,818.02
  4. Step 4: Simplify right side
    148,799.72x = 16,595,584,398.70
  5. Step 5: Solve for x
    x = 16,595,584,398.70/148,799.72
  6. Step 6: Final answer
    x = 111,529.67

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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.