Home / 141,359.86-195,122.07-90,509.56

Finding the Fourth Proportional to 141,359.86, 195,122.07 and 90,509.56

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Solution

The fourth proportional to 141,359.86, 195,122.07 and 90,509.56 is: 124,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,359.86 : 195,122.07 = 90,509.56 : x
  2. Step 2: Convert to fraction form
    141,359.86/195,122.07 = 90,509.56/x
  3. Step 3: Cross multiply
    141,359.86x = 195,122.07 × 90,509.56
  4. Step 4: Simplify right side
    141,359.86x = 17,660,412,701.99
  5. Step 5: Solve for x
    x = 17,660,412,701.99/141,359.86
  6. Step 6: Final answer
    x = 124,932.30

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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.