Home / 148,401.25-204,806.69-81,346.21

Finding the Fourth Proportional to 148,401.25, 204,806.69 and 81,346.21

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Solution

The fourth proportional to 148,401.25, 204,806.69 and 81,346.21 is: 112,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,401.25 : 204,806.69 = 81,346.21 : x
  2. Step 2: Convert to fraction form
    148,401.25/204,806.69 = 81,346.21/x
  3. Step 3: Cross multiply
    148,401.25x = 204,806.69 × 81,346.21
  4. Step 4: Simplify right side
    148,401.25x = 16,660,248,014.14
  5. Step 5: Solve for x
    x = 16,660,248,014.14/148,401.25
  6. Step 6: Final answer
    x = 112,264.88

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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.