Home / 107,913.20-161,869.80-34,031.60

Finding the Fourth Proportional to 107,913.20, 161,869.80 and 34,031.60

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Solution

The fourth proportional to 107,913.20, 161,869.80 and 34,031.60 is: 51,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,913.20 : 161,869.80 = 34,031.60 : x
  2. Step 2: Convert to fraction form
    107,913.20/161,869.80 = 34,031.60/x
  3. Step 3: Cross multiply
    107,913.20x = 161,869.80 × 34,031.60
  4. Step 4: Simplify right side
    107,913.20x = 5,508,688,285.68
  5. Step 5: Solve for x
    x = 5,508,688,285.68/107,913.20
  6. Step 6: Final answer
    x = 51,047.40

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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.