Home / 103,282.85-142,493.78-67,493.60

Finding the Fourth Proportional to 103,282.85, 142,493.78 and 67,493.60

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Solution

The fourth proportional to 103,282.85, 142,493.78 and 67,493.60 is: 93,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,282.85 : 142,493.78 = 67,493.60 : x
  2. Step 2: Convert to fraction form
    103,282.85/142,493.78 = 67,493.60/x
  3. Step 3: Cross multiply
    103,282.85x = 142,493.78 × 67,493.60
  4. Step 4: Simplify right side
    103,282.85x = 9,617,418,981.95
  5. Step 5: Solve for x
    x = 9,617,418,981.95/103,282.85
  6. Step 6: Final answer
    x = 93,117.29

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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.