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Finding the Fourth Proportional to 160,010.20, 220,812.78 and 88,394.86

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Solution

The fourth proportional to 160,010.20, 220,812.78 and 88,394.86 is: 121,984.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,010.20 : 220,812.78 = 88,394.86 : x
  2. Step 2: Convert to fraction form
    160,010.20/220,812.78 = 88,394.86/x
  3. Step 3: Cross multiply
    160,010.20x = 220,812.78 × 88,394.86
  4. Step 4: Simplify right side
    160,010.20x = 19,518,714,774.31
  5. Step 5: Solve for x
    x = 19,518,714,774.31/160,010.20
  6. Step 6: Final answer
    x = 121,984.19

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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.