Home / 105,646,594.60-158,469,891.90-72,768,111.40

Finding the Fourth Proportional to 105,646,594.60, 158,469,891.90 and 72,768,111.40

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Solution

The fourth proportional to 105,646,594.60, 158,469,891.90 and 72,768,111.40 is: 109,152,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,646,594.60 : 158,469,891.90 = 72,768,111.40 : x
  2. Step 2: Convert to fraction form
    105,646,594.60/158,469,891.90 = 72,768,111.40/x
  3. Step 3: Cross multiply
    105,646,594.60x = 158,469,891.90 × 72,768,111.40
  4. Step 4: Simplify right side
    105,646,594.60x = 11,531,554,747,325,160
  5. Step 5: Solve for x
    x = 11,531,554,747,325,160/105,646,594.60
  6. Step 6: Final answer
    x = 109,152,167.10

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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.