Home / 126,303.10-174,361.36-78,571.96

Finding the Fourth Proportional to 126,303.10, 174,361.36 and 78,571.96

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Solution

The fourth proportional to 126,303.10, 174,361.36 and 78,571.96 is: 108,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,303.10 : 174,361.36 = 78,571.96 : x
  2. Step 2: Convert to fraction form
    126,303.10/174,361.36 = 78,571.96/x
  3. Step 3: Cross multiply
    126,303.10x = 174,361.36 × 78,571.96
  4. Step 4: Simplify right side
    126,303.10x = 13,699,913,803.47
  5. Step 5: Solve for x
    x = 13,699,913,803.47/126,303.10
  6. Step 6: Final answer
    x = 108,468.55

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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.