Home / 191,146.23-263,821.93-121,250.31

Finding the Fourth Proportional to 191,146.23, 263,821.93 and 121,250.31

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Solution

The fourth proportional to 191,146.23, 263,821.93 and 121,250.31 is: 167,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,146.23 : 263,821.93 = 121,250.31 : x
  2. Step 2: Convert to fraction form
    191,146.23/263,821.93 = 121,250.31/x
  3. Step 3: Cross multiply
    191,146.23x = 263,821.93 × 121,250.31
  4. Step 4: Simplify right side
    191,146.23x = 31,988,490,797.30
  5. Step 5: Solve for x
    x = 31,988,490,797.30/191,146.23
  6. Step 6: Final answer
    x = 167,350.89

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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.