Home / 126,172.64-174,112.36-72,419.84

Finding the Fourth Proportional to 126,172.64, 174,112.36 and 72,419.84

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Solution

The fourth proportional to 126,172.64, 174,112.36 and 72,419.84 is: 99,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,172.64 : 174,112.36 = 72,419.84 : x
  2. Step 2: Convert to fraction form
    126,172.64/174,112.36 = 72,419.84/x
  3. Step 3: Cross multiply
    126,172.64x = 174,112.36 × 72,419.84
  4. Step 4: Simplify right side
    126,172.64x = 12,609,189,253.22
  5. Step 5: Solve for x
    x = 12,609,189,253.22/126,172.64
  6. Step 6: Final answer
    x = 99,936.00

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1.5x scale

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.