Home / 141,542.48-195,328.58-77,878.92

Finding the Fourth Proportional to 141,542.48, 195,328.58 and 77,878.92

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Solution

The fourth proportional to 141,542.48, 195,328.58 and 77,878.92 is: 107,472.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,542.48 : 195,328.58 = 77,878.92 : x
  2. Step 2: Convert to fraction form
    141,542.48/195,328.58 = 77,878.92/x
  3. Step 3: Cross multiply
    141,542.48x = 195,328.58 × 77,878.92
  4. Step 4: Simplify right side
    141,542.48x = 15,211,978,855.53
  5. Step 5: Solve for x
    x = 15,211,978,855.53/141,542.48
  6. Step 6: Final answer
    x = 107,472.89

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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.