Home / 108,945.04-163,427.60-42,390.16

Finding the Fourth Proportional to 108,945.04, 163,427.60 and 42,390.16

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Solution

The fourth proportional to 108,945.04, 163,427.60 and 42,390.16 is: 63,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,945.04 : 163,427.60 = 42,390.16 : x
  2. Step 2: Convert to fraction form
    108,945.04/163,427.60 = 42,390.16/x
  3. Step 3: Cross multiply
    108,945.04x = 163,427.60 × 42,390.16
  4. Step 4: Simplify right side
    108,945.04x = 6,927,722,112.42
  5. Step 5: Solve for x
    x = 6,927,722,112.42/108,945.04
  6. Step 6: Final answer
    x = 63,589.15

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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.