Home / 109,205.72-163,808.58-30,320.02

Finding the Fourth Proportional to 109,205.72, 163,808.58 and 30,320.02

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Solution

The fourth proportional to 109,205.72, 163,808.58 and 30,320.02 is: 45,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,205.72 : 163,808.58 = 30,320.02 : x
  2. Step 2: Convert to fraction form
    109,205.72/163,808.58 = 30,320.02/x
  3. Step 3: Cross multiply
    109,205.72x = 163,808.58 × 30,320.02
  4. Step 4: Simplify right side
    109,205.72x = 4,966,679,569.68
  5. Step 5: Solve for x
    x = 4,966,679,569.68/109,205.72
  6. Step 6: Final answer
    x = 45,480.03

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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.