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Finding the Fourth Proportional to 160,039.43, 220,856.73 and 88,421.10

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Solution

The fourth proportional to 160,039.43, 220,856.73 and 88,421.10 is: 122,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,039.43 : 220,856.73 = 88,421.10 : x
  2. Step 2: Convert to fraction form
    160,039.43/220,856.73 = 88,421.10/x
  3. Step 3: Cross multiply
    160,039.43x = 220,856.73 × 88,421.10
  4. Step 4: Simplify right side
    160,039.43x = 19,528,395,009.00
  5. Step 5: Solve for x
    x = 19,528,395,009.00/160,039.43
  6. Step 6: Final answer
    x = 122,022.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.