Home / 122,672,188.80-169,274,539.52-67,668,040.96

Finding the Fourth Proportional to 122,672,188.80, 169,274,539.52 and 67,668,040.96

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Solution

The fourth proportional to 122,672,188.80, 169,274,539.52 and 67,668,040.96 is: 93,374,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,672,188.80 : 169,274,539.52 = 67,668,040.96 : x
  2. Step 2: Convert to fraction form
    122,672,188.80/169,274,539.52 = 67,668,040.96/x
  3. Step 3: Cross multiply
    122,672,188.80x = 169,274,539.52 × 67,668,040.96
  4. Step 4: Simplify right side
    122,672,188.80x = 11,454,476,473,724,498
  5. Step 5: Solve for x
    x = 11,454,476,473,724,498/122,672,188.80
  6. Step 6: Final answer
    x = 93,374,680.81

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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.