Home / 143,729.19-198,133.61-92,040.81

Finding the Fourth Proportional to 143,729.19, 198,133.61 and 92,040.81

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Solution

The fourth proportional to 143,729.19, 198,133.61 and 92,040.81 is: 126,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,729.19 : 198,133.61 = 92,040.81 : x
  2. Step 2: Convert to fraction form
    143,729.19/198,133.61 = 92,040.81/x
  3. Step 3: Cross multiply
    143,729.19x = 198,133.61 × 92,040.81
  4. Step 4: Simplify right side
    143,729.19x = 18,236,377,492.42
  5. Step 5: Solve for x
    x = 18,236,377,492.42/143,729.19
  6. Step 6: Final answer
    x = 126,880.12

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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.