Home / 103,867.30-143,336.14-61,424.92

Finding the Fourth Proportional to 103,867.30, 143,336.14 and 61,424.92

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Solution

The fourth proportional to 103,867.30, 143,336.14 and 61,424.92 is: 84,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,867.30 : 143,336.14 = 61,424.92 : x
  2. Step 2: Convert to fraction form
    103,867.30/143,336.14 = 61,424.92/x
  3. Step 3: Cross multiply
    103,867.30x = 143,336.14 × 61,424.92
  4. Step 4: Simplify right side
    103,867.30x = 8,804,410,932.61
  5. Step 5: Solve for x
    x = 8,804,410,932.61/103,867.30
  6. Step 6: Final answer
    x = 84,765.96

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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.