Home / 113,157.19-156,028.80-72,267.58

Finding the Fourth Proportional to 113,157.19, 156,028.80 and 72,267.58

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Solution

The fourth proportional to 113,157.19, 156,028.80 and 72,267.58 is: 99,647.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,157.19 : 156,028.80 = 72,267.58 : x
  2. Step 2: Convert to fraction form
    113,157.19/156,028.80 = 72,267.58/x
  3. Step 3: Cross multiply
    113,157.19x = 156,028.80 × 72,267.58
  4. Step 4: Simplify right side
    113,157.19x = 11,275,823,786.30
  5. Step 5: Solve for x
    x = 11,275,823,786.30/113,157.19
  6. Step 6: Final answer
    x = 99,647.44

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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.