Home / 128,777.02-193,149.12-49,837.24

Finding the Fourth Proportional to 128,777.02, 193,149.12 and 49,837.24

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Solution

The fourth proportional to 128,777.02, 193,149.12 and 49,837.24 is: 74,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,777.02 : 193,149.12 = 49,837.24 : x
  2. Step 2: Convert to fraction form
    128,777.02/193,149.12 = 49,837.24/x
  3. Step 3: Cross multiply
    128,777.02x = 193,149.12 × 49,837.24
  4. Step 4: Simplify right side
    128,777.02x = 9,626,019,049.23
  5. Step 5: Solve for x
    x = 9,626,019,049.23/128,777.02
  6. Step 6: Final answer
    x = 74,749.51

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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.