Home / 149,335.60-205,799.58-106,820.32

Finding the Fourth Proportional to 149,335.60, 205,799.58 and 106,820.32

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Solution

The fourth proportional to 149,335.60, 205,799.58 and 106,820.32 is: 147,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,335.60 : 205,799.58 = 106,820.32 : x
  2. Step 2: Convert to fraction form
    149,335.60/205,799.58 = 106,820.32/x
  3. Step 3: Cross multiply
    149,335.60x = 205,799.58 × 106,820.32
  4. Step 4: Simplify right side
    149,335.60x = 21,983,576,991.47
  5. Step 5: Solve for x
    x = 21,983,576,991.47/149,335.60
  6. Step 6: Final answer
    x = 147,209.22

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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.