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Finding the Fourth Proportional to 70,136.71, 105,207.18 and 22,750.51

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Solution

The fourth proportional to 70,136.71, 105,207.18 and 22,750.51 is: 34,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136.71 : 105,207.18 = 22,750.51 : x
  2. Step 2: Convert to fraction form
    70,136.71/105,207.18 = 22,750.51/x
  3. Step 3: Cross multiply
    70,136.71x = 105,207.18 × 22,750.51
  4. Step 4: Simplify right side
    70,136.71x = 2,393,517,000.66
  5. Step 5: Solve for x
    x = 2,393,517,000.66/70,136.71
  6. Step 6: Final answer
    x = 34,126.45

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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.