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Finding the Fourth Proportional to 125,459.04, 173,214.54 and 77,763

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Solution

The fourth proportional to 125,459.04, 173,214.54 and 77,763 is: 107,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,459.04 : 173,214.54 = 77,763 : x
  2. Step 2: Convert to fraction form
    125,459.04/173,214.54 = 77,763/x
  3. Step 3: Cross multiply
    125,459.04x = 173,214.54 × 77,763
  4. Step 4: Simplify right side
    125,459.04x = 13,469,682,274.02
  5. Step 5: Solve for x
    x = 13,469,682,274.02/125,459.04
  6. Step 6: Final answer
    x = 107,363.19

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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.