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Finding the Fourth Proportional to 142,269.95, 213,510.11 and 67,390.22

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Solution

The fourth proportional to 142,269.95, 213,510.11 and 67,390.22 is: 101,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,269.95 : 213,510.11 = 67,390.22 : x
  2. Step 2: Convert to fraction form
    142,269.95/213,510.11 = 67,390.22/x
  3. Step 3: Cross multiply
    142,269.95x = 213,510.11 × 67,390.22
  4. Step 4: Simplify right side
    142,269.95x = 14,388,491,880.62
  5. Step 5: Solve for x
    x = 14,388,491,880.62/142,269.95
  6. Step 6: Final answer
    x = 101,135.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.