Home / 105,646,389.60-158,469,584.40-72,767,906.40

Finding the Fourth Proportional to 105,646,389.60, 158,469,584.40 and 72,767,906.40

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Solution

The fourth proportional to 105,646,389.60, 158,469,584.40 and 72,767,906.40 is: 109,151,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,646,389.60 : 158,469,584.40 = 72,767,906.40 : x
  2. Step 2: Convert to fraction form
    105,646,389.60/158,469,584.40 = 72,767,906.40/x
  3. Step 3: Cross multiply
    105,646,389.60x = 158,469,584.40 × 72,767,906.40
  4. Step 4: Simplify right side
    105,646,389.60x = 11,531,499,884,866,102
  5. Step 5: Solve for x
    x = 11,531,499,884,866,102/105,646,389.60
  6. Step 6: Final answer
    x = 109,151,859.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.