Home / 135,526.08-187,057.20-90,205.86

Finding the Fourth Proportional to 135,526.08, 187,057.20 and 90,205.86

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Solution

The fourth proportional to 135,526.08, 187,057.20 and 90,205.86 is: 124,504.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,526.08 : 187,057.20 = 90,205.86 : x
  2. Step 2: Convert to fraction form
    135,526.08/187,057.20 = 90,205.86/x
  3. Step 3: Cross multiply
    135,526.08x = 187,057.20 × 90,205.86
  4. Step 4: Simplify right side
    135,526.08x = 16,873,655,595.19
  5. Step 5: Solve for x
    x = 16,873,655,595.19/135,526.08
  6. Step 6: Final answer
    x = 124,504.86

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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.