Home / 105,264.26-145,262.96-57,516.60

Finding the Fourth Proportional to 105,264.26, 145,262.96 and 57,516.60

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Solution

The fourth proportional to 105,264.26, 145,262.96 and 57,516.60 is: 79,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,264.26 : 145,262.96 = 57,516.60 : x
  2. Step 2: Convert to fraction form
    105,264.26/145,262.96 = 57,516.60/x
  3. Step 3: Cross multiply
    105,264.26x = 145,262.96 × 57,516.60
  4. Step 4: Simplify right side
    105,264.26x = 8,355,031,565.14
  5. Step 5: Solve for x
    x = 8,355,031,565.14/105,264.26
  6. Step 6: Final answer
    x = 79,371.97

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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.