Home / 141,515.39-195,289.62-105,378.48

Finding the Fourth Proportional to 141,515.39, 195,289.62 and 105,378.48

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Solution

The fourth proportional to 141,515.39, 195,289.62 and 105,378.48 is: 145,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,515.39 : 195,289.62 = 105,378.48 : x
  2. Step 2: Convert to fraction form
    141,515.39/195,289.62 = 105,378.48/x
  3. Step 3: Cross multiply
    141,515.39x = 195,289.62 × 105,378.48
  4. Step 4: Simplify right side
    141,515.39x = 20,579,323,315.38
  5. Step 5: Solve for x
    x = 20,579,323,315.38/141,515.39
  6. Step 6: Final answer
    x = 145,421.10

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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.