Home / 109,619.40-164,429.10-26,513.40

Finding the Fourth Proportional to 109,619.40, 164,429.10 and 26,513.40

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Solution

The fourth proportional to 109,619.40, 164,429.10 and 26,513.40 is: 39,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,619.40 : 164,429.10 = 26,513.40 : x
  2. Step 2: Convert to fraction form
    109,619.40/164,429.10 = 26,513.40/x
  3. Step 3: Cross multiply
    109,619.40x = 164,429.10 × 26,513.40
  4. Step 4: Simplify right side
    109,619.40x = 4,359,574,499.94
  5. Step 5: Solve for x
    x = 4,359,574,499.94/109,619.40
  6. Step 6: Final answer
    x = 39,770.10

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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.