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Finding the Fourth Proportional to 125,710.78, 173,483.91 and 69,122.14

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Solution

The fourth proportional to 125,710.78, 173,483.91 and 69,122.14 is: 95,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,710.78 : 173,483.91 = 69,122.14 : x
  2. Step 2: Convert to fraction form
    125,710.78/173,483.91 = 69,122.14/x
  3. Step 3: Cross multiply
    125,710.78x = 173,483.91 × 69,122.14
  4. Step 4: Simplify right side
    125,710.78x = 11,991,579,114.77
  5. Step 5: Solve for x
    x = 11,991,579,114.77/125,710.78
  6. Step 6: Final answer
    x = 95,390.22

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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.