Home / 125,440.04-173,188.32-77,744

Finding the Fourth Proportional to 125,440.04, 173,188.32 and 77,744

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Solution

The fourth proportional to 125,440.04, 173,188.32 and 77,744 is: 107,336.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,440.04 : 173,188.32 = 77,744 : x
  2. Step 2: Convert to fraction form
    125,440.04/173,188.32 = 77,744/x
  3. Step 3: Cross multiply
    125,440.04x = 173,188.32 × 77,744
  4. Step 4: Simplify right side
    125,440.04x = 13,464,352,750.08
  5. Step 5: Solve for x
    x = 13,464,352,750.08/125,440.04
  6. Step 6: Final answer
    x = 107,336.96

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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.