Home / 163,959.39-245,973.65-53,142.75

Finding the Fourth Proportional to 163,959.39, 245,973.65 and 53,142.75

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Solution

The fourth proportional to 163,959.39, 245,973.65 and 53,142.75 is: 79,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,959.39 : 245,973.65 = 53,142.75 : x
  2. Step 2: Convert to fraction form
    163,959.39/245,973.65 = 53,142.75/x
  3. Step 3: Cross multiply
    163,959.39x = 245,973.65 × 53,142.75
  4. Step 4: Simplify right side
    163,959.39x = 13,071,715,922.82
  5. Step 5: Solve for x
    x = 13,071,715,922.82/163,959.39
  6. Step 6: Final answer
    x = 79,725.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.