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Finding the Fourth Proportional to 142,211.00, 213,378.71 and 67,384.62

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Solution

The fourth proportional to 142,211.00, 213,378.71 and 67,384.62 is: 101,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,211.00 : 213,378.71 = 67,384.62 : x
  2. Step 2: Convert to fraction form
    142,211.00/213,378.71 = 67,384.62/x
  3. Step 3: Cross multiply
    142,211.00x = 213,378.71 × 67,384.62
  4. Step 4: Simplify right side
    142,211.00x = 14,378,442,952.52
  5. Step 5: Solve for x
    x = 14,378,442,952.52/142,211.00
  6. Step 6: Final answer
    x = 101,106.40

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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.