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Finding the Fourth Proportional to 172,259.52, 237,664.71 and 100,587.84

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Solution

The fourth proportional to 172,259.52, 237,664.71 and 100,587.84 is: 138,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,259.52 : 237,664.71 = 100,587.84 : x
  2. Step 2: Convert to fraction form
    172,259.52/237,664.71 = 100,587.84/x
  3. Step 3: Cross multiply
    172,259.52x = 237,664.71 × 100,587.84
  4. Step 4: Simplify right side
    172,259.52x = 23,906,179,823.13
  5. Step 5: Solve for x
    x = 23,906,179,823.13/172,259.52
  6. Step 6: Final answer
    x = 138,780.02

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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.