Home / 103,806.15-143,222.85-58,468.32

Finding the Fourth Proportional to 103,806.15, 143,222.85 and 58,468.32

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Solution

The fourth proportional to 103,806.15, 143,222.85 and 58,468.32 is: 80,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,806.15 : 143,222.85 = 58,468.32 : x
  2. Step 2: Convert to fraction form
    103,806.15/143,222.85 = 58,468.32/x
  3. Step 3: Cross multiply
    103,806.15x = 143,222.85 × 58,468.32
  4. Step 4: Simplify right side
    103,806.15x = 8,373,999,425.11
  5. Step 5: Solve for x
    x = 8,373,999,425.11/103,806.15
  6. Step 6: Final answer
    x = 80,669.59

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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.