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Finding the Fourth Proportional to 142,453.54, 213,785.30 and 67,573.90

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Solution

The fourth proportional to 142,453.54, 213,785.30 and 67,573.90 is: 101,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,453.54 : 213,785.30 = 67,573.90 : x
  2. Step 2: Convert to fraction form
    142,453.54/213,785.30 = 67,573.90/x
  3. Step 3: Cross multiply
    142,453.54x = 213,785.30 × 67,573.90
  4. Step 4: Simplify right side
    142,453.54x = 14,446,306,483.67
  5. Step 5: Solve for x
    x = 14,446,306,483.67/142,453.54
  6. Step 6: Final answer
    x = 101,410.65

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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.