Home / 141,421.46-195,161.56-77,763.38

Finding the Fourth Proportional to 141,421.46, 195,161.56 and 77,763.38

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Solution

The fourth proportional to 141,421.46, 195,161.56 and 77,763.38 is: 107,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,421.46 : 195,161.56 = 77,763.38 : x
  2. Step 2: Convert to fraction form
    141,421.46/195,161.56 = 77,763.38/x
  3. Step 3: Cross multiply
    141,421.46x = 195,161.56 × 77,763.38
  4. Step 4: Simplify right side
    141,421.46x = 15,176,422,551.67
  5. Step 5: Solve for x
    x = 15,176,422,551.67/141,421.46
  6. Step 6: Final answer
    x = 107,313.43

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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.