Home / 113,989.44-157,380.66-71,031.30

Finding the Fourth Proportional to 113,989.44, 157,380.66 and 71,031.30

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Solution

The fourth proportional to 113,989.44, 157,380.66 and 71,031.30 is: 98,070.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,989.44 : 157,380.66 = 71,031.30 : x
  2. Step 2: Convert to fraction form
    113,989.44/157,380.66 = 71,031.30/x
  3. Step 3: Cross multiply
    113,989.44x = 157,380.66 × 71,031.30
  4. Step 4: Simplify right side
    113,989.44x = 11,178,952,874.66
  5. Step 5: Solve for x
    x = 11,178,952,874.66/113,989.44
  6. Step 6: Final answer
    x = 98,070.07

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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.