Home / 134,255.30-201,210.15-81,608.90

Finding the Fourth Proportional to 134,255.30, 201,210.15 and 81,608.90

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Solution

The fourth proportional to 134,255.30, 201,210.15 and 81,608.90 is: 122,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,255.30 : 201,210.15 = 81,608.90 : x
  2. Step 2: Convert to fraction form
    134,255.30/201,210.15 = 81,608.90/x
  3. Step 3: Cross multiply
    134,255.30x = 201,210.15 × 81,608.90
  4. Step 4: Simplify right side
    134,255.30x = 16,420,539,010.34
  5. Step 5: Solve for x
    x = 16,420,539,010.34/134,255.30
  6. Step 6: Final answer
    x = 122,308.31

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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.