Home / 235,537.04-325,043.28-128,108

Finding the Fourth Proportional to 235,537.04, 325,043.28 and 128,108

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Solution

The fourth proportional to 235,537.04, 325,043.28 and 128,108 is: 176,790.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,537.04 : 325,043.28 = 128,108 : x
  2. Step 2: Convert to fraction form
    235,537.04/325,043.28 = 128,108/x
  3. Step 3: Cross multiply
    235,537.04x = 325,043.28 × 128,108
  4. Step 4: Simplify right side
    235,537.04x = 41,640,644,514.24
  5. Step 5: Solve for x
    x = 41,640,644,514.24/235,537.04
  6. Step 6: Final answer
    x = 176,790.22

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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.