Home / 130,109.71-195,031.63-73,831

Finding the Fourth Proportional to 130,109.71, 195,031.63 and 73,831

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Solution

The fourth proportional to 130,109.71, 195,031.63 and 73,831 is: 110,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,109.71 : 195,031.63 = 73,831 : x
  2. Step 2: Convert to fraction form
    130,109.71/195,031.63 = 73,831/x
  3. Step 3: Cross multiply
    130,109.71x = 195,031.63 × 73,831
  4. Step 4: Simplify right side
    130,109.71x = 14,399,380,274.53
  5. Step 5: Solve for x
    x = 14,399,380,274.53/130,109.71
  6. Step 6: Final answer
    x = 110,671.07

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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.