Home / 126,872,099.87-175,119,987.56-76,628,337.71

Finding the Fourth Proportional to 126,872,099.87, 175,119,987.56 and 76,628,337.71

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Solution

The fourth proportional to 126,872,099.87, 175,119,987.56 and 76,628,337.71 is: 105,769,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872,099.87 : 175,119,987.56 = 76,628,337.71 : x
  2. Step 2: Convert to fraction form
    126,872,099.87/175,119,987.56 = 76,628,337.71/x
  3. Step 3: Cross multiply
    126,872,099.87x = 175,119,987.56 × 76,628,337.71
  4. Step 4: Simplify right side
    126,872,099.87x = 13,419,153,546,245,164
  5. Step 5: Solve for x
    x = 13,419,153,546,245,164/126,872,099.87
  6. Step 6: Final answer
    x = 105,769,145.15

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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.