Home / 148,799.84-205,345.26-80,817.45

Finding the Fourth Proportional to 148,799.84, 205,345.26 and 80,817.45

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Solution

The fourth proportional to 148,799.84, 205,345.26 and 80,817.45 is: 111,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,799.84 : 205,345.26 = 80,817.45 : x
  2. Step 2: Convert to fraction form
    148,799.84/205,345.26 = 80,817.45/x
  3. Step 3: Cross multiply
    148,799.84x = 205,345.26 × 80,817.45
  4. Step 4: Simplify right side
    148,799.84x = 16,595,480,282.79
  5. Step 5: Solve for x
    x = 16,595,480,282.79/148,799.84
  6. Step 6: Final answer
    x = 111,528.89

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1.5x scale

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.