Home / 130,994.42-196,515.39-74,897.78

Finding the Fourth Proportional to 130,994.42, 196,515.39 and 74,897.78

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Solution

The fourth proportional to 130,994.42, 196,515.39 and 74,897.78 is: 112,360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,994.42 : 196,515.39 = 74,897.78 : x
  2. Step 2: Convert to fraction form
    130,994.42/196,515.39 = 74,897.78/x
  3. Step 3: Cross multiply
    130,994.42x = 196,515.39 × 74,897.78
  4. Step 4: Simplify right side
    130,994.42x = 14,718,566,446.83
  5. Step 5: Solve for x
    x = 14,718,566,446.83/130,994.42
  6. Step 6: Final answer
    x = 112,360.26

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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.