Home / 103,208.69-142,429.17-57,269.17

Finding the Fourth Proportional to 103,208.69, 142,429.17 and 57,269.17

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Solution

The fourth proportional to 103,208.69, 142,429.17 and 57,269.17 is: 79,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,208.69 : 142,429.17 = 57,269.17 : x
  2. Step 2: Convert to fraction form
    103,208.69/142,429.17 = 57,269.17/x
  3. Step 3: Cross multiply
    103,208.69x = 142,429.17 × 57,269.17
  4. Step 4: Simplify right side
    103,208.69x = 8,156,800,349.69
  5. Step 5: Solve for x
    x = 8,156,800,349.69/103,208.69
  6. Step 6: Final answer
    x = 79,032.11

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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.