Home / 113,780.80-156,949.85-73,518.30

Finding the Fourth Proportional to 113,780.80, 156,949.85 and 73,518.30

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Solution

The fourth proportional to 113,780.80, 156,949.85 and 73,518.30 is: 101,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,780.80 : 156,949.85 = 73,518.30 : x
  2. Step 2: Convert to fraction form
    113,780.80/156,949.85 = 73,518.30/x
  3. Step 3: Cross multiply
    113,780.80x = 156,949.85 × 73,518.30
  4. Step 4: Simplify right side
    113,780.80x = 11,538,686,157.26
  5. Step 5: Solve for x
    x = 11,538,686,157.26/113,780.80
  6. Step 6: Final answer
    x = 101,411.54

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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.