Home / 117,142.02-161,614.17-71,803.62

Finding the Fourth Proportional to 117,142.02, 161,614.17 and 71,803.62

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Solution

The fourth proportional to 117,142.02, 161,614.17 and 71,803.62 is: 99,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.02 : 161,614.17 = 71,803.62 : x
  2. Step 2: Convert to fraction form
    117,142.02/161,614.17 = 71,803.62/x
  3. Step 3: Cross multiply
    117,142.02x = 161,614.17 × 71,803.62
  4. Step 4: Simplify right side
    117,142.02x = 11,604,482,449.30
  5. Step 5: Solve for x
    x = 11,604,482,449.30/117,142.02
  6. Step 6: Final answer
    x = 99,063.36

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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.