Home / 161,747.68-223,218.66-90,127.76

Finding the Fourth Proportional to 161,747.68, 223,218.66 and 90,127.76

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Solution

The fourth proportional to 161,747.68, 223,218.66 and 90,127.76 is: 124,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,747.68 : 223,218.66 = 90,127.76 : x
  2. Step 2: Convert to fraction form
    161,747.68/223,218.66 = 90,127.76/x
  3. Step 3: Cross multiply
    161,747.68x = 223,218.66 × 90,127.76
  4. Step 4: Simplify right side
    161,747.68x = 20,118,197,816.00
  5. Step 5: Solve for x
    x = 20,118,197,816.00/161,747.68
  6. Step 6: Final answer
    x = 124,380.13

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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.