Home / 113,519.75-156,657.23-65,800.77

Finding the Fourth Proportional to 113,519.75, 156,657.23 and 65,800.77

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Solution

The fourth proportional to 113,519.75, 156,657.23 and 65,800.77 is: 90,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,519.75 : 156,657.23 = 65,800.77 : x
  2. Step 2: Convert to fraction form
    113,519.75/156,657.23 = 65,800.77/x
  3. Step 3: Cross multiply
    113,519.75x = 156,657.23 × 65,800.77
  4. Step 4: Simplify right side
    113,519.75x = 10,308,166,031.06
  5. Step 5: Solve for x
    x = 10,308,166,031.06/113,519.75
  6. Step 6: Final answer
    x = 90,805.05

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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.