Home / 243,145.18-335,529.30-135,712.86

Finding the Fourth Proportional to 243,145.18, 335,529.30 and 135,712.86

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Solution

The fourth proportional to 243,145.18, 335,529.30 and 135,712.86 is: 187,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,145.18 : 335,529.30 = 135,712.86 : x
  2. Step 2: Convert to fraction form
    243,145.18/335,529.30 = 135,712.86/x
  3. Step 3: Cross multiply
    243,145.18x = 335,529.30 × 135,712.86
  4. Step 4: Simplify right side
    243,145.18x = 45,535,640,916.80
  5. Step 5: Solve for x
    x = 45,535,640,916.80/243,145.18
  6. Step 6: Final answer
    x = 187,277.58

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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.