Home / 103,884.80-143,326.64-58,557.20

Finding the Fourth Proportional to 103,884.80, 143,326.64 and 58,557.20

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Solution

The fourth proportional to 103,884.80, 143,326.64 and 58,557.20 is: 80,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,884.80 : 143,326.64 = 58,557.20 : x
  2. Step 2: Convert to fraction form
    103,884.80/143,326.64 = 58,557.20/x
  3. Step 3: Cross multiply
    103,884.80x = 143,326.64 × 58,557.20
  4. Step 4: Simplify right side
    103,884.80x = 8,392,806,723.81
  5. Step 5: Solve for x
    x = 8,392,806,723.81/103,884.80
  6. Step 6: Final answer
    x = 80,789.55

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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.