Home / 103,415.46-142,697.78-58,084.76

Finding the Fourth Proportional to 103,415.46, 142,697.78 and 58,084.76

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Solution

The fourth proportional to 103,415.46, 142,697.78 and 58,084.76 is: 80,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,415.46 : 142,697.78 = 58,084.76 : x
  2. Step 2: Convert to fraction form
    103,415.46/142,697.78 = 58,084.76/x
  3. Step 3: Cross multiply
    103,415.46x = 142,697.78 × 58,084.76
  4. Step 4: Simplify right side
    103,415.46x = 8,288,565,299.92
  5. Step 5: Solve for x
    x = 8,288,565,299.92/103,415.46
  6. Step 6: Final answer
    x = 80,148.22

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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.