Home / 160,786.19-221,985.26-103,524.78

Finding the Fourth Proportional to 160,786.19, 221,985.26 and 103,524.78

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Solution

The fourth proportional to 160,786.19, 221,985.26 and 103,524.78 is: 142,928.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,786.19 : 221,985.26 = 103,524.78 : x
  2. Step 2: Convert to fraction form
    160,786.19/221,985.26 = 103,524.78/x
  3. Step 3: Cross multiply
    160,786.19x = 221,985.26 × 103,524.78
  4. Step 4: Simplify right side
    160,786.19x = 22,980,974,687.12
  5. Step 5: Solve for x
    x = 22,980,974,687.12/160,786.19
  6. Step 6: Final answer
    x = 142,928.79

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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.