Home / 163,128.85-225,196.95-109,394.26

Finding the Fourth Proportional to 163,128.85, 225,196.95 and 109,394.26

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Solution

The fourth proportional to 163,128.85, 225,196.95 and 109,394.26 is: 151,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,128.85 : 225,196.95 = 109,394.26 : x
  2. Step 2: Convert to fraction form
    163,128.85/225,196.95 = 109,394.26/x
  3. Step 3: Cross multiply
    163,128.85x = 225,196.95 × 109,394.26
  4. Step 4: Simplify right side
    163,128.85x = 24,635,253,699.51
  5. Step 5: Solve for x
    x = 24,635,253,699.51/163,128.85
  6. Step 6: Final answer
    x = 151,017.15

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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.