Home / 117,517.08-162,049.58-83,490.06

Finding the Fourth Proportional to 117,517.08, 162,049.58 and 83,490.06

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Solution

The fourth proportional to 117,517.08, 162,049.58 and 83,490.06 is: 115,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,517.08 : 162,049.58 = 83,490.06 : x
  2. Step 2: Convert to fraction form
    117,517.08/162,049.58 = 83,490.06/x
  3. Step 3: Cross multiply
    117,517.08x = 162,049.58 × 83,490.06
  4. Step 4: Simplify right side
    117,517.08x = 13,529,529,157.17
  5. Step 5: Solve for x
    x = 13,529,529,157.17/117,517.08
  6. Step 6: Final answer
    x = 115,128.19

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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.