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Finding the Fourth Proportional to 139,457.29, 192,451.09 and 75,795.10

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Solution

The fourth proportional to 139,457.29, 192,451.09 and 75,795.10 is: 104,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,457.29 : 192,451.09 = 75,795.10 : x
  2. Step 2: Convert to fraction form
    139,457.29/192,451.09 = 75,795.10/x
  3. Step 3: Cross multiply
    139,457.29x = 192,451.09 × 75,795.10
  4. Step 4: Simplify right side
    139,457.29x = 14,586,849,611.66
  5. Step 5: Solve for x
    x = 14,586,849,611.66/139,457.29
  6. Step 6: Final answer
    x = 104,597.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.