Home / 138,395.62-190,786.89-98,582.50

Finding the Fourth Proportional to 138,395.62, 190,786.89 and 98,582.50

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Solution

The fourth proportional to 138,395.62, 190,786.89 and 98,582.50 is: 135,902.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,395.62 : 190,786.89 = 98,582.50 : x
  2. Step 2: Convert to fraction form
    138,395.62/190,786.89 = 98,582.50/x
  3. Step 3: Cross multiply
    138,395.62x = 190,786.89 × 98,582.50
  4. Step 4: Simplify right side
    138,395.62x = 18,808,248,583.43
  5. Step 5: Solve for x
    x = 18,808,248,583.43/138,395.62
  6. Step 6: Final answer
    x = 135,902.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.