Home / 144,639.66-199,578.96-90,886.62

Finding the Fourth Proportional to 144,639.66, 199,578.96 and 90,886.62

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Solution

The fourth proportional to 144,639.66, 199,578.96 and 90,886.62 is: 125,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,639.66 : 199,578.96 = 90,886.62 : x
  2. Step 2: Convert to fraction form
    144,639.66/199,578.96 = 90,886.62/x
  3. Step 3: Cross multiply
    144,639.66x = 199,578.96 × 90,886.62
  4. Step 4: Simplify right side
    144,639.66x = 18,139,057,097.52
  5. Step 5: Solve for x
    x = 18,139,057,097.52/144,639.66
  6. Step 6: Final answer
    x = 125,408.60

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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.