Home / 118,790.30-163,799.22-75,701.51

Finding the Fourth Proportional to 118,790.30, 163,799.22 and 75,701.51

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Solution

The fourth proportional to 118,790.30, 163,799.22 and 75,701.51 is: 104,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,790.30 : 163,799.22 = 75,701.51 : x
  2. Step 2: Convert to fraction form
    118,790.30/163,799.22 = 75,701.51/x
  3. Step 3: Cross multiply
    118,790.30x = 163,799.22 × 75,701.51
  4. Step 4: Simplify right side
    118,790.30x = 12,399,848,290.82
  5. Step 5: Solve for x
    x = 12,399,848,290.82/118,790.30
  6. Step 6: Final answer
    x = 104,384.35

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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.