Home / 147,612.21-203,698.96-87,202.25

Finding the Fourth Proportional to 147,612.21, 203,698.96 and 87,202.25

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Solution

The fourth proportional to 147,612.21, 203,698.96 and 87,202.25 is: 120,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,612.21 : 203,698.96 = 87,202.25 : x
  2. Step 2: Convert to fraction form
    147,612.21/203,698.96 = 87,202.25/x
  3. Step 3: Cross multiply
    147,612.21x = 203,698.96 × 87,202.25
  4. Step 4: Simplify right side
    147,612.21x = 17,763,007,634.66
  5. Step 5: Solve for x
    x = 17,763,007,634.66/147,612.21
  6. Step 6: Final answer
    x = 120,335.63

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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.