Home / 117,055.05-161,535.65-63,340.98

Finding the Fourth Proportional to 117,055.05, 161,535.65 and 63,340.98

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Solution

The fourth proportional to 117,055.05, 161,535.65 and 63,340.98 is: 87,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,055.05 : 161,535.65 = 63,340.98 : x
  2. Step 2: Convert to fraction form
    117,055.05/161,535.65 = 63,340.98/x
  3. Step 3: Cross multiply
    117,055.05x = 161,535.65 × 63,340.98
  4. Step 4: Simplify right side
    117,055.05x = 10,231,826,059.23
  5. Step 5: Solve for x
    x = 10,231,826,059.23/117,055.05
  6. Step 6: Final answer
    x = 87,410.38

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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.