Home / 189,278.19-261,203.40-108,710.93

Finding the Fourth Proportional to 189,278.19, 261,203.40 and 108,710.93

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Solution

The fourth proportional to 189,278.19, 261,203.40 and 108,710.93 is: 150,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,278.19 : 261,203.40 = 108,710.93 : x
  2. Step 2: Convert to fraction form
    189,278.19/261,203.40 = 108,710.93/x
  3. Step 3: Cross multiply
    189,278.19x = 261,203.40 × 108,710.93
  4. Step 4: Simplify right side
    189,278.19x = 28,395,665,186.17
  5. Step 5: Solve for x
    x = 28,395,665,186.17/189,278.19
  6. Step 6: Final answer
    x = 150,020.80

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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.