Home / 117,039.12-161,512.81-63,322.98

Finding the Fourth Proportional to 117,039.12, 161,512.81 and 63,322.98

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Solution

The fourth proportional to 117,039.12, 161,512.81 and 63,322.98 is: 87,385.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,039.12 : 161,512.81 = 63,322.98 : x
  2. Step 2: Convert to fraction form
    117,039.12/161,512.81 = 63,322.98/x
  3. Step 3: Cross multiply
    117,039.12x = 161,512.81 × 63,322.98
  4. Step 4: Simplify right side
    117,039.12x = 10,227,472,437.37
  5. Step 5: Solve for x
    x = 10,227,472,437.37/117,039.12
  6. Step 6: Final answer
    x = 87,385.08

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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.