Home / 108,972.42-163,415.97-42,403.74

Finding the Fourth Proportional to 108,972.42, 163,415.97 and 42,403.74

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Solution

The fourth proportional to 108,972.42, 163,415.97 and 42,403.74 is: 63,589.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,972.42 : 163,415.97 = 42,403.74 : x
  2. Step 2: Convert to fraction form
    108,972.42/163,415.97 = 42,403.74/x
  3. Step 3: Cross multiply
    108,972.42x = 163,415.97 × 42,403.74
  4. Step 4: Simplify right side
    108,972.42x = 6,929,448,303.73
  5. Step 5: Solve for x
    x = 6,929,448,303.73/108,972.42
  6. Step 6: Final answer
    x = 63,589.01

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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.