Home / 141,423.67-195,163.08-105,286.69

Finding the Fourth Proportional to 141,423.67, 195,163.08 and 105,286.69

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Solution

The fourth proportional to 141,423.67, 195,163.08 and 105,286.69 is: 145,294.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,423.67 : 195,163.08 = 105,286.69 : x
  2. Step 2: Convert to fraction form
    141,423.67/195,163.08 = 105,286.69/x
  3. Step 3: Cross multiply
    141,423.67x = 195,163.08 × 105,286.69
  4. Step 4: Simplify right side
    141,423.67x = 20,548,074,703.41
  5. Step 5: Solve for x
    x = 20,548,074,703.41/141,423.67
  6. Step 6: Final answer
    x = 145,294.45

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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.