Home / 124,213.08-171,614.46-86,655

Finding the Fourth Proportional to 124,213.08, 171,614.46 and 86,655

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Solution

The fourth proportional to 124,213.08, 171,614.46 and 86,655 is: 119,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,213.08 : 171,614.46 = 86,655 : x
  2. Step 2: Convert to fraction form
    124,213.08/171,614.46 = 86,655/x
  3. Step 3: Cross multiply
    124,213.08x = 171,614.46 × 86,655
  4. Step 4: Simplify right side
    124,213.08x = 14,871,251,031.30
  5. Step 5: Solve for x
    x = 14,871,251,031.30/124,213.08
  6. Step 6: Final answer
    x = 119,723.71

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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.