Home / 109,465.62-163,937.79-69,900.18

Finding the Fourth Proportional to 109,465.62, 163,937.79 and 69,900.18

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Solution

The fourth proportional to 109,465.62, 163,937.79 and 69,900.18 is: 104,683.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,465.62 : 163,937.79 = 69,900.18 : x
  2. Step 2: Convert to fraction form
    109,465.62/163,937.79 = 69,900.18/x
  3. Step 3: Cross multiply
    109,465.62x = 163,937.79 × 69,900.18
  4. Step 4: Simplify right side
    109,465.62x = 11,459,281,029.80
  5. Step 5: Solve for x
    x = 11,459,281,029.80/109,465.62
  6. Step 6: Final answer
    x = 104,683.84

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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.