Home / 131,817.54-181,921.23-75,237.42

Finding the Fourth Proportional to 131,817.54, 181,921.23 and 75,237.42

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Solution

The fourth proportional to 131,817.54, 181,921.23 and 75,237.42 is: 103,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,817.54 : 181,921.23 = 75,237.42 : x
  2. Step 2: Convert to fraction form
    131,817.54/181,921.23 = 75,237.42/x
  3. Step 3: Cross multiply
    131,817.54x = 181,921.23 × 75,237.42
  4. Step 4: Simplify right side
    131,817.54x = 13,687,283,988.43
  5. Step 5: Solve for x
    x = 13,687,283,988.43/131,817.54
  6. Step 6: Final answer
    x = 103,835.07

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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.