Home / 126,724,690.52-174,959,056.86-87,100,449.56

Finding the Fourth Proportional to 126,724,690.52, 174,959,056.86 and 87,100,449.56

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Solution

The fourth proportional to 126,724,690.52, 174,959,056.86 and 87,100,449.56 is: 120,252,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,724,690.52 : 174,959,056.86 = 87,100,449.56 : x
  2. Step 2: Convert to fraction form
    126,724,690.52/174,959,056.86 = 87,100,449.56/x
  3. Step 3: Cross multiply
    126,724,690.52x = 174,959,056.86 × 87,100,449.56
  4. Step 4: Simplify right side
    126,724,690.52x = 15,239,012,507,099,604
  5. Step 5: Solve for x
    x = 15,239,012,507,099,604/126,724,690.52
  6. Step 6: Final answer
    x = 120,252,907.66

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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.