Home / 131,386.38-181,313.40-74,797.75

Finding the Fourth Proportional to 131,386.38, 181,313.40 and 74,797.75

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Solution

The fourth proportional to 131,386.38, 181,313.40 and 74,797.75 is: 103,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.38 : 181,313.40 = 74,797.75 : x
  2. Step 2: Convert to fraction form
    131,386.38/181,313.40 = 74,797.75/x
  3. Step 3: Cross multiply
    131,386.38x = 181,313.40 × 74,797.75
  4. Step 4: Simplify right side
    131,386.38x = 13,561,834,364.85
  5. Step 5: Solve for x
    x = 13,561,834,364.85/131,386.38
  6. Step 6: Final answer
    x = 103,221.01

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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.