Home / 130,029.39-195,199.61-77,463.63

Finding the Fourth Proportional to 130,029.39, 195,199.61 and 77,463.63

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Solution

The fourth proportional to 130,029.39, 195,199.61 and 77,463.63 is: 116,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,029.39 : 195,199.61 = 77,463.63 : x
  2. Step 2: Convert to fraction form
    130,029.39/195,199.61 = 77,463.63/x
  3. Step 3: Cross multiply
    130,029.39x = 195,199.61 × 77,463.63
  4. Step 4: Simplify right side
    130,029.39x = 15,120,869,977.87
  5. Step 5: Solve for x
    x = 15,120,869,977.87/130,029.39
  6. Step 6: Final answer
    x = 116,288.09

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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.