Home / 125,870.39-173,705.38-68,511.79

Finding the Fourth Proportional to 125,870.39, 173,705.38 and 68,511.79

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Solution

The fourth proportional to 125,870.39, 173,705.38 and 68,511.79 is: 94,548.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,870.39 : 173,705.38 = 68,511.79 : x
  2. Step 2: Convert to fraction form
    125,870.39/173,705.38 = 68,511.79/x
  3. Step 3: Cross multiply
    125,870.39x = 173,705.38 × 68,511.79
  4. Step 4: Simplify right side
    125,870.39x = 11,900,866,562.28
  5. Step 5: Solve for x
    x = 11,900,866,562.28/125,870.39
  6. Step 6: Final answer
    x = 94,548.58

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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.