Home / 126,535.65-174,610.89-72,812.00

Finding the Fourth Proportional to 126,535.65, 174,610.89 and 72,812.00

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Solution

The fourth proportional to 126,535.65, 174,610.89 and 72,812.00 is: 100,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,535.65 : 174,610.89 = 72,812.00 : x
  2. Step 2: Convert to fraction form
    126,535.65/174,610.89 = 72,812.00/x
  3. Step 3: Cross multiply
    126,535.65x = 174,610.89 × 72,812.00
  4. Step 4: Simplify right side
    126,535.65x = 12,713,767,249.63
  5. Step 5: Solve for x
    x = 12,713,767,249.63/126,535.65
  6. Step 6: Final answer
    x = 100,475.77

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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.