Home / 108,936.90-163,463.40-42,379.20

Finding the Fourth Proportional to 108,936.90, 163,463.40 and 42,379.20

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Solution

The fourth proportional to 108,936.90, 163,463.40 and 42,379.20 is: 63,591.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,936.90 : 163,463.40 = 42,379.20 : x
  2. Step 2: Convert to fraction form
    108,936.90/163,463.40 = 42,379.20/x
  3. Step 3: Cross multiply
    108,936.90x = 163,463.40 × 42,379.20
  4. Step 4: Simplify right side
    108,936.90x = 6,927,448,121.28
  5. Step 5: Solve for x
    x = 6,927,448,121.28/108,936.90
  6. Step 6: Final answer
    x = 63,591.38

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1.5x scale

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.