Home / 103,188.26-142,406.64-57,869.17

Finding the Fourth Proportional to 103,188.26, 142,406.64 and 57,869.17

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Solution

The fourth proportional to 103,188.26, 142,406.64 and 57,869.17 is: 79,863.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,188.26 : 142,406.64 = 57,869.17 : x
  2. Step 2: Convert to fraction form
    103,188.26/142,406.64 = 57,869.17/x
  3. Step 3: Cross multiply
    103,188.26x = 142,406.64 × 57,869.17
  4. Step 4: Simplify right side
    103,188.26x = 8,240,953,703.27
  5. Step 5: Solve for x
    x = 8,240,953,703.27/103,188.26
  6. Step 6: Final answer
    x = 79,863.29

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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.