Home / 126,722.48-174,857.54-72,997.00

Finding the Fourth Proportional to 126,722.48, 174,857.54 and 72,997.00

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Solution

The fourth proportional to 126,722.48, 174,857.54 and 72,997.00 is: 100,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,722.48 : 174,857.54 = 72,997.00 : x
  2. Step 2: Convert to fraction form
    126,722.48/174,857.54 = 72,997.00/x
  3. Step 3: Cross multiply
    126,722.48x = 174,857.54 × 72,997.00
  4. Step 4: Simplify right side
    126,722.48x = 12,764,075,045.25
  5. Step 5: Solve for x
    x = 12,764,075,045.25/126,722.48
  6. Step 6: Final answer
    x = 100,724.64

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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.