Home / 117,708.09-162,472.73-80,004.21

Finding the Fourth Proportional to 117,708.09, 162,472.73 and 80,004.21

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Solution

The fourth proportional to 117,708.09, 162,472.73 and 80,004.21 is: 110,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,708.09 : 162,472.73 = 80,004.21 : x
  2. Step 2: Convert to fraction form
    117,708.09/162,472.73 = 80,004.21/x
  3. Step 3: Cross multiply
    117,708.09x = 162,472.73 × 80,004.21
  4. Step 4: Simplify right side
    117,708.09x = 12,998,502,410.19
  5. Step 5: Solve for x
    x = 12,998,502,410.19/117,708.09
  6. Step 6: Final answer
    x = 110,429.98

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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.