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Finding the Fourth Proportional to 155,780.24, 214,976.48 and 88,712.24

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Solution

The fourth proportional to 155,780.24, 214,976.48 and 88,712.24 is: 122,422.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,780.24 : 214,976.48 = 88,712.24 : x
  2. Step 2: Convert to fraction form
    155,780.24/214,976.48 = 88,712.24/x
  3. Step 3: Cross multiply
    155,780.24x = 214,976.48 × 88,712.24
  4. Step 4: Simplify right side
    155,780.24x = 19,071,045,088.12
  5. Step 5: Solve for x
    x = 19,071,045,088.12/155,780.24
  6. Step 6: Final answer
    x = 122,422.75

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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.