Home / 105,868,661.88-146,099,780.80-61,211,280.96

Finding the Fourth Proportional to 105,868,661.88, 146,099,780.80 and 61,211,280.96

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Solution

The fourth proportional to 105,868,661.88, 146,099,780.80 and 61,211,280.96 is: 84,472,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,868,661.88 : 146,099,780.80 = 61,211,280.96 : x
  2. Step 2: Convert to fraction form
    105,868,661.88/146,099,780.80 = 61,211,280.96/x
  3. Step 3: Cross multiply
    105,868,661.88x = 146,099,780.80 × 61,211,280.96
  4. Step 4: Simplify right side
    105,868,661.88x = 8,942,954,730,743,214
  5. Step 5: Solve for x
    x = 8,942,954,730,743,214/105,868,661.88
  6. Step 6: Final answer
    x = 84,472,161.75

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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.