Home / 109,212.12-163,844.10-56,646.36

Finding the Fourth Proportional to 109,212.12, 163,844.10 and 56,646.36

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Solution

The fourth proportional to 109,212.12, 163,844.10 and 56,646.36 is: 84,982.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,212.12 : 163,844.10 = 56,646.36 : x
  2. Step 2: Convert to fraction form
    109,212.12/163,844.10 = 56,646.36/x
  3. Step 3: Cross multiply
    109,212.12x = 163,844.10 × 56,646.36
  4. Step 4: Simplify right side
    109,212.12x = 9,281,171,872.48
  5. Step 5: Solve for x
    x = 9,281,171,872.48/109,212.12
  6. Step 6: Final answer
    x = 84,982.98

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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.