Home / 160,536.08-221,688.71-120,179.78

Finding the Fourth Proportional to 160,536.08, 221,688.71 and 120,179.78

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Solution

The fourth proportional to 160,536.08, 221,688.71 and 120,179.78 is: 165,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,536.08 : 221,688.71 = 120,179.78 : x
  2. Step 2: Convert to fraction form
    160,536.08/221,688.71 = 120,179.78/x
  3. Step 3: Cross multiply
    160,536.08x = 221,688.71 × 120,179.78
  4. Step 4: Simplify right side
    160,536.08x = 26,642,498,686.94
  5. Step 5: Solve for x
    x = 26,642,498,686.94/160,536.08
  6. Step 6: Final answer
    x = 165,959.57

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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.