Home / 103,824.23-143,278.77-61,382.39

Finding the Fourth Proportional to 103,824.23, 143,278.77 and 61,382.39

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Solution

The fourth proportional to 103,824.23, 143,278.77 and 61,382.39 is: 84,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,824.23 : 143,278.77 = 61,382.39 : x
  2. Step 2: Convert to fraction form
    103,824.23/143,278.77 = 61,382.39/x
  3. Step 3: Cross multiply
    103,824.23x = 143,278.77 × 61,382.39
  4. Step 4: Simplify right side
    103,824.23x = 8,794,793,338.86
  5. Step 5: Solve for x
    x = 8,794,793,338.86/103,824.23
  6. Step 6: Final answer
    x = 84,708.49

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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.