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Finding the Fourth Proportional to 70,163.18, 105,244.76 and 17,572.72

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Solution

The fourth proportional to 70,163.18, 105,244.76 and 17,572.72 is: 26,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,163.18 : 105,244.76 = 17,572.72 : x
  2. Step 2: Convert to fraction form
    70,163.18/105,244.76 = 17,572.72/x
  3. Step 3: Cross multiply
    70,163.18x = 105,244.76 × 17,572.72
  4. Step 4: Simplify right side
    70,163.18x = 1,849,436,698.95
  5. Step 5: Solve for x
    x = 1,849,436,698.95/70,163.18
  6. Step 6: Final answer
    x = 26,359.08

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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.