Home / 223,159.89-307,966.01-122,560.05

Finding the Fourth Proportional to 223,159.89, 307,966.01 and 122,560.05

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Solution

The fourth proportional to 223,159.89, 307,966.01 and 122,560.05 is: 169,135.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,159.89 : 307,966.01 = 122,560.05 : x
  2. Step 2: Convert to fraction form
    223,159.89/307,966.01 = 122,560.05/x
  3. Step 3: Cross multiply
    223,159.89x = 307,966.01 × 122,560.05
  4. Step 4: Simplify right side
    223,159.89x = 37,744,328,971.10
  5. Step 5: Solve for x
    x = 37,744,328,971.10/223,159.89
  6. Step 6: Final answer
    x = 169,135.81

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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.