Home / 108,997.23-163,428.93-42,359.55

Finding the Fourth Proportional to 108,997.23, 163,428.93 and 42,359.55

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Solution

The fourth proportional to 108,997.23, 163,428.93 and 42,359.55 is: 63,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,997.23 : 163,428.93 = 42,359.55 : x
  2. Step 2: Convert to fraction form
    108,997.23/163,428.93 = 42,359.55/x
  3. Step 3: Cross multiply
    108,997.23x = 163,428.93 × 42,359.55
  4. Step 4: Simplify right side
    108,997.23x = 6,922,775,114.64
  5. Step 5: Solve for x
    x = 6,922,775,114.64/108,997.23
  6. Step 6: Final answer
    x = 63,513.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.