Home / 147,147.12-203,064.48-80,079.12

Finding the Fourth Proportional to 147,147.12, 203,064.48 and 80,079.12

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Solution

The fourth proportional to 147,147.12, 203,064.48 and 80,079.12 is: 110,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147.12 : 203,064.48 = 80,079.12 : x
  2. Step 2: Convert to fraction form
    147,147.12/203,064.48 = 80,079.12/x
  3. Step 3: Cross multiply
    147,147.12x = 203,064.48 × 80,079.12
  4. Step 4: Simplify right side
    147,147.12x = 16,261,224,861.66
  5. Step 5: Solve for x
    x = 16,261,224,861.66/147,147.12
  6. Step 6: Final answer
    x = 110,509.98

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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.