Home / 113,135.42-156,091.76-65,371.34

Finding the Fourth Proportional to 113,135.42, 156,091.76 and 65,371.34

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Solution

The fourth proportional to 113,135.42, 156,091.76 and 65,371.34 is: 90,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,135.42 : 156,091.76 = 65,371.34 : x
  2. Step 2: Convert to fraction form
    113,135.42/156,091.76 = 65,371.34/x
  3. Step 3: Cross multiply
    113,135.42x = 156,091.76 × 65,371.34
  4. Step 4: Simplify right side
    113,135.42x = 10,203,927,514.16
  5. Step 5: Solve for x
    x = 10,203,927,514.16/113,135.42
  6. Step 6: Final answer
    x = 90,192.16

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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.