Home / 160,849.45-221,970.17-87,260.79

Finding the Fourth Proportional to 160,849.45, 221,970.17 and 87,260.79

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Solution

The fourth proportional to 160,849.45, 221,970.17 and 87,260.79 is: 120,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,849.45 : 221,970.17 = 87,260.79 : x
  2. Step 2: Convert to fraction form
    160,849.45/221,970.17 = 87,260.79/x
  3. Step 3: Cross multiply
    160,849.45x = 221,970.17 × 87,260.79
  4. Step 4: Simplify right side
    160,849.45x = 19,369,293,441.17
  5. Step 5: Solve for x
    x = 19,369,293,441.17/160,849.45
  6. Step 6: Final answer
    x = 120,418.78

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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.