Home / 109,081.48-163,603.99-30,203.68

Finding the Fourth Proportional to 109,081.48, 163,603.99 and 30,203.68

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Solution

The fourth proportional to 109,081.48, 163,603.99 and 30,203.68 is: 45,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,081.48 : 163,603.99 = 30,203.68 : x
  2. Step 2: Convert to fraction form
    109,081.48/163,603.99 = 30,203.68/x
  3. Step 3: Cross multiply
    109,081.48x = 163,603.99 × 30,203.68
  4. Step 4: Simplify right side
    109,081.48x = 4,941,441,591.64
  5. Step 5: Solve for x
    x = 4,941,441,591.64/109,081.48
  6. Step 6: Final answer
    x = 45,300.47

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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.