Home / 141,322.32-195,022.56-77,658.75

Finding the Fourth Proportional to 141,322.32, 195,022.56 and 77,658.75

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Solution

The fourth proportional to 141,322.32, 195,022.56 and 77,658.75 is: 107,167.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,322.32 : 195,022.56 = 77,658.75 : x
  2. Step 2: Convert to fraction form
    141,322.32/195,022.56 = 77,658.75/x
  3. Step 3: Cross multiply
    141,322.32x = 195,022.56 × 77,658.75
  4. Step 4: Simplify right side
    141,322.32x = 15,145,208,231.40
  5. Step 5: Solve for x
    x = 15,145,208,231.40/141,322.32
  6. Step 6: Final answer
    x = 107,167.84

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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.