Home / 225,748.50-311,581.53-135,124.70

Finding the Fourth Proportional to 225,748.50, 311,581.53 and 135,124.70

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Solution

The fourth proportional to 225,748.50, 311,581.53 and 135,124.70 is: 186,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,748.50 : 311,581.53 = 135,124.70 : x
  2. Step 2: Convert to fraction form
    225,748.50/311,581.53 = 135,124.70/x
  3. Step 3: Cross multiply
    225,748.50x = 311,581.53 × 135,124.70
  4. Step 4: Simplify right side
    225,748.50x = 42,102,359,208.88
  5. Step 5: Solve for x
    x = 42,102,359,208.88/225,748.50
  6. Step 6: Final answer
    x = 186,501.17

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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.