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Finding the Fourth Proportional to 117,437.66, 162,053.27 and 69,682.78

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Solution

The fourth proportional to 117,437.66, 162,053.27 and 69,682.78 is: 96,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,437.66 : 162,053.27 = 69,682.78 : x
  2. Step 2: Convert to fraction form
    117,437.66/162,053.27 = 69,682.78/x
  3. Step 3: Cross multiply
    117,437.66x = 162,053.27 × 69,682.78
  4. Step 4: Simplify right side
    117,437.66x = 11,292,322,361.69
  5. Step 5: Solve for x
    x = 11,292,322,361.69/117,437.66
  6. Step 6: Final answer
    x = 96,155.89

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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.