Home / 105,212.46-145,193.19-57,465.92

Finding the Fourth Proportional to 105,212.46, 145,193.19 and 57,465.92

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Solution

The fourth proportional to 105,212.46, 145,193.19 and 57,465.92 is: 79,302.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,212.46 : 145,193.19 = 57,465.92 : x
  2. Step 2: Convert to fraction form
    105,212.46/145,193.19 = 57,465.92/x
  3. Step 3: Cross multiply
    105,212.46x = 145,193.19 × 57,465.92
  4. Step 4: Simplify right side
    105,212.46x = 8,343,660,241.08
  5. Step 5: Solve for x
    x = 8,343,660,241.08/105,212.46
  6. Step 6: Final answer
    x = 79,302.97

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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.