Home / 161,736.64-242,648.88-91,665.16

Finding the Fourth Proportional to 161,736.64, 242,648.88 and 91,665.16

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Solution

The fourth proportional to 161,736.64, 242,648.88 and 91,665.16 is: 137,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,736.64 : 242,648.88 = 91,665.16 : x
  2. Step 2: Convert to fraction form
    161,736.64/242,648.88 = 91,665.16/x
  3. Step 3: Cross multiply
    161,736.64x = 242,648.88 × 91,665.16
  4. Step 4: Simplify right side
    161,736.64x = 22,242,448,409.02
  5. Step 5: Solve for x
    x = 22,242,448,409.02/161,736.64
  6. Step 6: Final answer
    x = 137,522.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.