Home / 103,074.42-142,179.83-68,148.95

Finding the Fourth Proportional to 103,074.42, 142,179.83 and 68,148.95

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Solution

The fourth proportional to 103,074.42, 142,179.83 and 68,148.95 is: 94,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,074.42 : 142,179.83 = 68,148.95 : x
  2. Step 2: Convert to fraction form
    103,074.42/142,179.83 = 68,148.95/x
  3. Step 3: Cross multiply
    103,074.42x = 142,179.83 × 68,148.95
  4. Step 4: Simplify right side
    103,074.42x = 9,689,406,125.68
  5. Step 5: Solve for x
    x = 9,689,406,125.68/103,074.42
  6. Step 6: Final answer
    x = 94,003.98

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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.