Home / 107,988.37-162,031.78-55,434.79

Finding the Fourth Proportional to 107,988.37, 162,031.78 and 55,434.79

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Solution

The fourth proportional to 107,988.37, 162,031.78 and 55,434.79 is: 83,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,988.37 : 162,031.78 = 55,434.79 : x
  2. Step 2: Convert to fraction form
    107,988.37/162,031.78 = 55,434.79/x
  3. Step 3: Cross multiply
    107,988.37x = 162,031.78 × 55,434.79
  4. Step 4: Simplify right side
    107,988.37x = 8,982,197,697.63
  5. Step 5: Solve for x
    x = 8,982,197,697.63/107,988.37
  6. Step 6: Final answer
    x = 83,177.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.