Home / 144,329.21-199,168.03-78,916.83

Finding the Fourth Proportional to 144,329.21, 199,168.03 and 78,916.83

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Solution

The fourth proportional to 144,329.21, 199,168.03 and 78,916.83 is: 108,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,329.21 : 199,168.03 = 78,916.83 : x
  2. Step 2: Convert to fraction form
    144,329.21/199,168.03 = 78,916.83/x
  3. Step 3: Cross multiply
    144,329.21x = 199,168.03 × 78,916.83
  4. Step 4: Simplify right side
    144,329.21x = 15,717,708,916.71
  5. Step 5: Solve for x
    x = 15,717,708,916.71/144,329.21
  6. Step 6: Final answer
    x = 108,901.79

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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.