Home / 103,621.75-142,998.02-58,909.75

Finding the Fourth Proportional to 103,621.75, 142,998.02 and 58,909.75

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Solution

The fourth proportional to 103,621.75, 142,998.02 and 58,909.75 is: 81,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.75 : 142,998.02 = 58,909.75 : x
  2. Step 2: Convert to fraction form
    103,621.75/142,998.02 = 58,909.75/x
  3. Step 3: Cross multiply
    103,621.75x = 142,998.02 × 58,909.75
  4. Step 4: Simplify right side
    103,621.75x = 8,423,977,608.70
  5. Step 5: Solve for x
    x = 8,423,977,608.70/103,621.75
  6. Step 6: Final answer
    x = 81,295.46

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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.