Home / 148,131.13-204,421.02-81,063.13

Finding the Fourth Proportional to 148,131.13, 204,421.02 and 81,063.13

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Solution

The fourth proportional to 148,131.13, 204,421.02 and 81,063.13 is: 111,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,131.13 : 204,421.02 = 81,063.13 : x
  2. Step 2: Convert to fraction form
    148,131.13/204,421.02 = 81,063.13/x
  3. Step 3: Cross multiply
    148,131.13x = 204,421.02 × 81,063.13
  4. Step 4: Simplify right side
    148,131.13x = 16,571,007,718.99
  5. Step 5: Solve for x
    x = 16,571,007,718.99/148,131.13
  6. Step 6: Final answer
    x = 111,867.15

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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.