Home / 98,118.78-147,192.57-31,536.96

Finding the Fourth Proportional to 98,118.78, 147,192.57 and 31,536.96

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Solution

The fourth proportional to 98,118.78, 147,192.57 and 31,536.96 is: 47,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,118.78 : 147,192.57 = 31,536.96 : x
  2. Step 2: Convert to fraction form
    98,118.78/147,192.57 = 31,536.96/x
  3. Step 3: Cross multiply
    98,118.78x = 147,192.57 × 31,536.96
  4. Step 4: Simplify right side
    98,118.78x = 4,642,006,192.39
  5. Step 5: Solve for x
    x = 4,642,006,192.39/98,118.78
  6. Step 6: Final answer
    x = 47,310.07

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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.