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Finding the Fourth Proportional to 125,628, 173,368.07 and 68,267.85

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Solution

The fourth proportional to 125,628, 173,368.07 and 68,267.85 is: 94,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,628 : 173,368.07 = 68,267.85 : x
  2. Step 2: Convert to fraction form
    125,628/173,368.07 = 68,267.85/x
  3. Step 3: Cross multiply
    125,628x = 173,368.07 × 68,267.85
  4. Step 4: Simplify right side
    125,628x = 11,835,465,397.55
  5. Step 5: Solve for x
    x = 11,835,465,397.55/125,628
  6. Step 6: Final answer
    x = 94,210.41

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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.