Home / 117,144.63-161,653.17-68,740.05

Finding the Fourth Proportional to 117,144.63, 161,653.17 and 68,740.05

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Solution

The fourth proportional to 117,144.63, 161,653.17 and 68,740.05 is: 94,857.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,144.63 : 161,653.17 = 68,740.05 : x
  2. Step 2: Convert to fraction form
    117,144.63/161,653.17 = 68,740.05/x
  3. Step 3: Cross multiply
    117,144.63x = 161,653.17 × 68,740.05
  4. Step 4: Simplify right side
    117,144.63x = 11,112,046,988.46
  5. Step 5: Solve for x
    x = 11,112,046,988.46/117,144.63
  6. Step 6: Final answer
    x = 94,857.50

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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.