Home / 109,850.20-164,840.10-72,518.20

Finding the Fourth Proportional to 109,850.20, 164,840.10 and 72,518.20

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Solution

The fourth proportional to 109,850.20, 164,840.10 and 72,518.20 is: 108,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,850.20 : 164,840.10 = 72,518.20 : x
  2. Step 2: Convert to fraction form
    109,850.20/164,840.10 = 72,518.20/x
  3. Step 3: Cross multiply
    109,850.20x = 164,840.10 × 72,518.20
  4. Step 4: Simplify right side
    109,850.20x = 11,953,907,339.82
  5. Step 5: Solve for x
    x = 11,953,907,339.82/109,850.20
  6. Step 6: Final answer
    x = 108,820.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.