Home / 223,973.80-309,072.18-139,089.04

Finding the Fourth Proportional to 223,973.80, 309,072.18 and 139,089.04

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Solution

The fourth proportional to 223,973.80, 309,072.18 and 139,089.04 is: 191,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,973.80 : 309,072.18 = 139,089.04 : x
  2. Step 2: Convert to fraction form
    223,973.80/309,072.18 = 139,089.04/x
  3. Step 3: Cross multiply
    223,973.80x = 309,072.18 × 139,089.04
  4. Step 4: Simplify right side
    223,973.80x = 42,988,552,806.91
  5. Step 5: Solve for x
    x = 42,988,552,806.91/223,973.80
  6. Step 6: Final answer
    x = 191,935.63

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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.