Home / 147,421.32-203,441.48-83,759.20

Finding the Fourth Proportional to 147,421.32, 203,441.48 and 83,759.20

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Solution

The fourth proportional to 147,421.32, 203,441.48 and 83,759.20 is: 115,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,421.32 : 203,441.48 = 83,759.20 : x
  2. Step 2: Convert to fraction form
    147,421.32/203,441.48 = 83,759.20/x
  3. Step 3: Cross multiply
    147,421.32x = 203,441.48 × 83,759.20
  4. Step 4: Simplify right side
    147,421.32x = 17,040,095,611.62
  5. Step 5: Solve for x
    x = 17,040,095,611.62/147,421.32
  6. Step 6: Final answer
    x = 115,587.73

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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.