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Finding the Fourth Proportional to 155,842.22, 215,062.31 and 88,774.22

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Solution

The fourth proportional to 155,842.22, 215,062.31 and 88,774.22 is: 122,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,842.22 : 215,062.31 = 88,774.22 : x
  2. Step 2: Convert to fraction form
    155,842.22/215,062.31 = 88,774.22/x
  3. Step 3: Cross multiply
    155,842.22x = 215,062.31 × 88,774.22
  4. Step 4: Simplify right side
    155,842.22x = 19,091,989,581.24
  5. Step 5: Solve for x
    x = 19,091,989,581.24/155,842.22
  6. Step 6: Final answer
    x = 122,508.45

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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.