Home / 151,553.16-209,180.88-103,235.04

Finding the Fourth Proportional to 151,553.16, 209,180.88 and 103,235.04

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Solution

The fourth proportional to 151,553.16, 209,180.88 and 103,235.04 is: 142,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,553.16 : 209,180.88 = 103,235.04 : x
  2. Step 2: Convert to fraction form
    151,553.16/209,180.88 = 103,235.04/x
  3. Step 3: Cross multiply
    151,553.16x = 209,180.88 × 103,235.04
  4. Step 4: Simplify right side
    151,553.16x = 21,594,796,514.04
  5. Step 5: Solve for x
    x = 21,594,796,514.04/151,553.16
  6. Step 6: Final answer
    x = 142,489.91

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1.5x scale

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.