Home / 117,516.08-162,048.20-83,489.06

Finding the Fourth Proportional to 117,516.08, 162,048.20 and 83,489.06

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Solution

The fourth proportional to 117,516.08, 162,048.20 and 83,489.06 is: 115,126.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,516.08 : 162,048.20 = 83,489.06 : x
  2. Step 2: Convert to fraction form
    117,516.08/162,048.20 = 83,489.06/x
  3. Step 3: Cross multiply
    117,516.08x = 162,048.20 × 83,489.06
  4. Step 4: Simplify right side
    117,516.08x = 13,529,251,892.69
  5. Step 5: Solve for x
    x = 13,529,251,892.69/117,516.08
  6. Step 6: Final answer
    x = 115,126.81

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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.