Home / 165,031.81-247,325.97-90,039.58

Finding the Fourth Proportional to 165,031.81, 247,325.97 and 90,039.58

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Solution

The fourth proportional to 165,031.81, 247,325.97 and 90,039.58 is: 134,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,031.81 : 247,325.97 = 90,039.58 : x
  2. Step 2: Convert to fraction form
    165,031.81/247,325.97 = 90,039.58/x
  3. Step 3: Cross multiply
    165,031.81x = 247,325.97 × 90,039.58
  4. Step 4: Simplify right side
    165,031.81x = 22,269,126,461.89
  5. Step 5: Solve for x
    x = 22,269,126,461.89/165,031.81
  6. Step 6: Final answer
    x = 134,938.39

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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.