Home / 108,742.10-163,057.80-42,201.32

Finding the Fourth Proportional to 108,742.10, 163,057.80 and 42,201.32

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Solution

The fourth proportional to 108,742.10, 163,057.80 and 42,201.32 is: 63,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,742.10 : 163,057.80 = 42,201.32 : x
  2. Step 2: Convert to fraction form
    108,742.10/163,057.80 = 42,201.32/x
  3. Step 3: Cross multiply
    108,742.10x = 163,057.80 × 42,201.32
  4. Step 4: Simplify right side
    108,742.10x = 6,881,254,396.30
  5. Step 5: Solve for x
    x = 6,881,254,396.30/108,742.10
  6. Step 6: Final answer
    x = 63,280.50

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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.