Home / 162,072.65-223,721.55-121,902.41

Finding the Fourth Proportional to 162,072.65, 223,721.55 and 121,902.41

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Solution

The fourth proportional to 162,072.65, 223,721.55 and 121,902.41 is: 168,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,072.65 : 223,721.55 = 121,902.41 : x
  2. Step 2: Convert to fraction form
    162,072.65/223,721.55 = 121,902.41/x
  3. Step 3: Cross multiply
    162,072.65x = 223,721.55 × 121,902.41
  4. Step 4: Simplify right side
    162,072.65x = 27,272,196,113.94
  5. Step 5: Solve for x
    x = 27,272,196,113.94/162,072.65
  6. Step 6: Final answer
    x = 168,271.43

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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.