Home / 130,178.80-195,180.68-51,252.40

Finding the Fourth Proportional to 130,178.80, 195,180.68 and 51,252.40

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Solution

The fourth proportional to 130,178.80, 195,180.68 and 51,252.40 is: 76,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,178.80 : 195,180.68 = 51,252.40 : x
  2. Step 2: Convert to fraction form
    130,178.80/195,180.68 = 51,252.40/x
  3. Step 3: Cross multiply
    130,178.80x = 195,180.68 × 51,252.40
  4. Step 4: Simplify right side
    130,178.80x = 10,003,478,283.63
  5. Step 5: Solve for x
    x = 10,003,478,283.63/130,178.80
  6. Step 6: Final answer
    x = 76,844.14

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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.