Home / 123,852.42-170,917.02-72,867.06

Finding the Fourth Proportional to 123,852.42, 170,917.02 and 72,867.06

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Solution

The fourth proportional to 123,852.42, 170,917.02 and 72,867.06 is: 100,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,852.42 : 170,917.02 = 72,867.06 : x
  2. Step 2: Convert to fraction form
    123,852.42/170,917.02 = 72,867.06/x
  3. Step 3: Cross multiply
    123,852.42x = 170,917.02 × 72,867.06
  4. Step 4: Simplify right side
    123,852.42x = 12,454,220,751.36
  5. Step 5: Solve for x
    x = 12,454,220,751.36/123,852.42
  6. Step 6: Final answer
    x = 100,556.94

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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.