Home / 160,239.91-221,122.05-87,628.39

Finding the Fourth Proportional to 160,239.91, 221,122.05 and 87,628.39

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Solution

The fourth proportional to 160,239.91, 221,122.05 and 87,628.39 is: 120,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,239.91 : 221,122.05 = 87,628.39 : x
  2. Step 2: Convert to fraction form
    160,239.91/221,122.05 = 87,628.39/x
  3. Step 3: Cross multiply
    160,239.91x = 221,122.05 × 87,628.39
  4. Step 4: Simplify right side
    160,239.91x = 19,376,569,235.00
  5. Step 5: Solve for x
    x = 19,376,569,235.00/160,239.91
  6. Step 6: Final answer
    x = 120,922.24

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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.