Home / 131,427.64-181,369.96-74,839.02

Finding the Fourth Proportional to 131,427.64, 181,369.96 and 74,839.02

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Solution

The fourth proportional to 131,427.64, 181,369.96 and 74,839.02 is: 103,277.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,427.64 : 181,369.96 = 74,839.02 : x
  2. Step 2: Convert to fraction form
    131,427.64/181,369.96 = 74,839.02/x
  3. Step 3: Cross multiply
    131,427.64x = 181,369.96 × 74,839.02
  4. Step 4: Simplify right side
    131,427.64x = 13,573,550,063.84
  5. Step 5: Solve for x
    x = 13,573,550,063.84/131,427.64
  6. Step 6: Final answer
    x = 103,277.74

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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.