Home / 131,387.54-181,302.91-74,036.20

Finding the Fourth Proportional to 131,387.54, 181,302.91 and 74,036.20

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Solution

The fourth proportional to 131,387.54, 181,302.91 and 74,036.20 is: 102,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,387.54 : 181,302.91 = 74,036.20 : x
  2. Step 2: Convert to fraction form
    131,387.54/181,302.91 = 74,036.20/x
  3. Step 3: Cross multiply
    131,387.54x = 181,302.91 × 74,036.20
  4. Step 4: Simplify right side
    131,387.54x = 13,422,978,505.34
  5. Step 5: Solve for x
    x = 13,422,978,505.34/131,387.54
  6. Step 6: Final answer
    x = 102,163.25

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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.