Home / 103,621.85-142,998.14-58,909.85

Finding the Fourth Proportional to 103,621.85, 142,998.14 and 58,909.85

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Solution

The fourth proportional to 103,621.85, 142,998.14 and 58,909.85 is: 81,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.85 : 142,998.14 = 58,909.85 : x
  2. Step 2: Convert to fraction form
    103,621.85/142,998.14 = 58,909.85/x
  3. Step 3: Cross multiply
    103,621.85x = 142,998.14 × 58,909.85
  4. Step 4: Simplify right side
    103,621.85x = 8,423,998,977.68
  5. Step 5: Solve for x
    x = 8,423,998,977.68/103,621.85
  6. Step 6: Final answer
    x = 81,295.59

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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.