Home / 113,738.88-156,967.28-65,992.20

Finding the Fourth Proportional to 113,738.88, 156,967.28 and 65,992.20

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Solution

The fourth proportional to 113,738.88, 156,967.28 and 65,992.20 is: 91,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,738.88 : 156,967.28 = 65,992.20 : x
  2. Step 2: Convert to fraction form
    113,738.88/156,967.28 = 65,992.20/x
  3. Step 3: Cross multiply
    113,738.88x = 156,967.28 × 65,992.20
  4. Step 4: Simplify right side
    113,738.88x = 10,358,616,135.22
  5. Step 5: Solve for x
    x = 10,358,616,135.22/113,738.88
  6. Step 6: Final answer
    x = 91,073.66

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1.5x scale

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.