Home / 113,511.43-156,698.85-65,755.45

Finding the Fourth Proportional to 113,511.43, 156,698.85 and 65,755.45

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Solution

The fourth proportional to 113,511.43, 156,698.85 and 65,755.45 is: 90,773.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,511.43 : 156,698.85 = 65,755.45 : x
  2. Step 2: Convert to fraction form
    113,511.43/156,698.85 = 65,755.45/x
  3. Step 3: Cross multiply
    113,511.43x = 156,698.85 × 65,755.45
  4. Step 4: Simplify right side
    113,511.43x = 10,303,803,396.23
  5. Step 5: Solve for x
    x = 10,303,803,396.23/113,511.43
  6. Step 6: Final answer
    x = 90,773.27

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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.