Home / 131,189.16-181,034.64-74,599.32

Finding the Fourth Proportional to 131,189.16, 181,034.64 and 74,599.32

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Solution

The fourth proportional to 131,189.16, 181,034.64 and 74,599.32 is: 102,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,189.16 : 181,034.64 = 74,599.32 : x
  2. Step 2: Convert to fraction form
    131,189.16/181,034.64 = 74,599.32/x
  3. Step 3: Cross multiply
    131,189.16x = 181,034.64 × 74,599.32
  4. Step 4: Simplify right side
    131,189.16x = 13,505,061,040.44
  5. Step 5: Solve for x
    x = 13,505,061,040.44/131,189.16
  6. Step 6: Final answer
    x = 102,943.42

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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.