Home / 117,164.97-161,681.13-66,188.16

Finding the Fourth Proportional to 117,164.97, 161,681.13 and 66,188.16

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Solution

The fourth proportional to 117,164.97, 161,681.13 and 66,188.16 is: 91,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,164.97 : 161,681.13 = 66,188.16 : x
  2. Step 2: Convert to fraction form
    117,164.97/161,681.13 = 66,188.16/x
  3. Step 3: Cross multiply
    117,164.97x = 161,681.13 × 66,188.16
  4. Step 4: Simplify right side
    117,164.97x = 10,701,376,501.42
  5. Step 5: Solve for x
    x = 10,701,376,501.42/117,164.97
  6. Step 6: Final answer
    x = 91,335.97

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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.