Home / 144,039.18-198,710.78-137,368.83

Finding the Fourth Proportional to 144,039.18, 198,710.78 and 137,368.83

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Solution

The fourth proportional to 144,039.18, 198,710.78 and 137,368.83 is: 189,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,039.18 : 198,710.78 = 137,368.83 : x
  2. Step 2: Convert to fraction form
    144,039.18/198,710.78 = 137,368.83/x
  3. Step 3: Cross multiply
    144,039.18x = 198,710.78 × 137,368.83
  4. Step 4: Simplify right side
    144,039.18x = 27,296,667,356.99
  5. Step 5: Solve for x
    x = 27,296,667,356.99/144,039.18
  6. Step 6: Final answer
    x = 189,508.63

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1.5x scale

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.