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Finding the Fourth Proportional to 155,633.79, 214,775.51 and 88,565.79

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Solution

The fourth proportional to 155,633.79, 214,775.51 and 88,565.79 is: 122,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,633.79 : 214,775.51 = 88,565.79 : x
  2. Step 2: Convert to fraction form
    155,633.79/214,775.51 = 88,565.79/x
  3. Step 3: Cross multiply
    155,633.79x = 214,775.51 × 88,565.79
  4. Step 4: Simplify right side
    155,633.79x = 19,021,762,272.97
  5. Step 5: Solve for x
    x = 19,021,762,272.97/155,633.79
  6. Step 6: Final answer
    x = 122,221.29

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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.