Home / 103,137.24-142,278.76-67,310.68

Finding the Fourth Proportional to 103,137.24, 142,278.76 and 67,310.68

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Solution

The fourth proportional to 103,137.24, 142,278.76 and 67,310.68 is: 92,855.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,137.24 : 142,278.76 = 67,310.68 : x
  2. Step 2: Convert to fraction form
    103,137.24/142,278.76 = 67,310.68/x
  3. Step 3: Cross multiply
    103,137.24x = 142,278.76 × 67,310.68
  4. Step 4: Simplify right side
    103,137.24x = 9,576,880,085.16
  5. Step 5: Solve for x
    x = 9,576,880,085.16/103,137.24
  6. Step 6: Final answer
    x = 92,855.69

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1.5x scale

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.