Home / 167,895.08-231,903.10-121,881.21

Finding the Fourth Proportional to 167,895.08, 231,903.10 and 121,881.21

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Solution

The fourth proportional to 167,895.08, 231,903.10 and 121,881.21 is: 168,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,895.08 : 231,903.10 = 121,881.21 : x
  2. Step 2: Convert to fraction form
    167,895.08/231,903.10 = 121,881.21/x
  3. Step 3: Cross multiply
    167,895.08x = 231,903.10 × 121,881.21
  4. Step 4: Simplify right side
    167,895.08x = 28,264,629,713.47
  5. Step 5: Solve for x
    x = 28,264,629,713.47/167,895.08
  6. Step 6: Final answer
    x = 168,346.98

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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.