Home / 117,300.44-161,872.62-66,312.38

Finding the Fourth Proportional to 117,300.44, 161,872.62 and 66,312.38

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Solution

The fourth proportional to 117,300.44, 161,872.62 and 66,312.38 is: 91,509.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,300.44 : 161,872.62 = 66,312.38 : x
  2. Step 2: Convert to fraction form
    117,300.44/161,872.62 = 66,312.38/x
  3. Step 3: Cross multiply
    117,300.44x = 161,872.62 × 66,312.38
  4. Step 4: Simplify right side
    117,300.44x = 10,734,158,689.04
  5. Step 5: Solve for x
    x = 10,734,158,689.04/117,300.44
  6. Step 6: Final answer
    x = 91,509.96

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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.