Home / 108,986.10-163,357.65-42,404.10

Finding the Fourth Proportional to 108,986.10, 163,357.65 and 42,404.10

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Solution

The fourth proportional to 108,986.10, 163,357.65 and 42,404.10 is: 63,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,986.10 : 163,357.65 = 42,404.10 : x
  2. Step 2: Convert to fraction form
    108,986.10/163,357.65 = 42,404.10/x
  3. Step 3: Cross multiply
    108,986.10x = 163,357.65 × 42,404.10
  4. Step 4: Simplify right side
    108,986.10x = 6,927,034,126.37
  5. Step 5: Solve for x
    x = 6,927,034,126.37/108,986.10
  6. Step 6: Final answer
    x = 63,558.88

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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.