Home / 126,353.51-174,328.33-72,618.83

Finding the Fourth Proportional to 126,353.51, 174,328.33 and 72,618.83

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Solution

The fourth proportional to 126,353.51, 174,328.33 and 72,618.83 is: 100,191.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,353.51 : 174,328.33 = 72,618.83 : x
  2. Step 2: Convert to fraction form
    126,353.51/174,328.33 = 72,618.83/x
  3. Step 3: Cross multiply
    126,353.51x = 174,328.33 × 72,618.83
  4. Step 4: Simplify right side
    126,353.51x = 12,659,519,360.45
  5. Step 5: Solve for x
    x = 12,659,519,360.45/126,353.51
  6. Step 6: Final answer
    x = 100,191.28

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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.