Home / 131,693.05-181,739.52-75,103.21

Finding the Fourth Proportional to 131,693.05, 181,739.52 and 75,103.21

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Solution

The fourth proportional to 131,693.05, 181,739.52 and 75,103.21 is: 103,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693.05 : 181,739.52 = 75,103.21 : x
  2. Step 2: Convert to fraction form
    131,693.05/181,739.52 = 75,103.21/x
  3. Step 3: Cross multiply
    131,693.05x = 181,739.52 × 75,103.21
  4. Step 4: Simplify right side
    131,693.05x = 13,649,220,051.65
  5. Step 5: Solve for x
    x = 13,649,220,051.65/131,693.05
  6. Step 6: Final answer
    x = 103,644.20

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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.