Home / 189,663.18-261,753.29-103,635.24

Finding the Fourth Proportional to 189,663.18, 261,753.29 and 103,635.24

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Solution

The fourth proportional to 189,663.18, 261,753.29 and 103,635.24 is: 143,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,663.18 : 261,753.29 = 103,635.24 : x
  2. Step 2: Convert to fraction form
    189,663.18/261,753.29 = 103,635.24/x
  3. Step 3: Cross multiply
    189,663.18x = 261,753.29 × 103,635.24
  4. Step 4: Simplify right side
    189,663.18x = 27,126,865,029.94
  5. Step 5: Solve for x
    x = 27,126,865,029.94/189,663.18
  6. Step 6: Final answer
    x = 143,026.52

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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.