Home / 141,650.12-195,477.28-77,987.92

Finding the Fourth Proportional to 141,650.12, 195,477.28 and 77,987.92

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Solution

The fourth proportional to 141,650.12, 195,477.28 and 77,987.92 is: 107,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,650.12 : 195,477.28 = 77,987.92 : x
  2. Step 2: Convert to fraction form
    141,650.12/195,477.28 = 77,987.92/x
  3. Step 3: Cross multiply
    141,650.12x = 195,477.28 × 77,987.92
  4. Step 4: Simplify right side
    141,650.12x = 15,244,866,474.46
  5. Step 5: Solve for x
    x = 15,244,866,474.46/141,650.12
  6. Step 6: Final answer
    x = 107,623.39

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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.