Home / 109,964.17-165,033.74-43,421.05

Finding the Fourth Proportional to 109,964.17, 165,033.74 and 43,421.05

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Solution

The fourth proportional to 109,964.17, 165,033.74 and 43,421.05 is: 65,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,964.17 : 165,033.74 = 43,421.05 : x
  2. Step 2: Convert to fraction form
    109,964.17/165,033.74 = 43,421.05/x
  3. Step 3: Cross multiply
    109,964.17x = 165,033.74 × 43,421.05
  4. Step 4: Simplify right side
    109,964.17x = 7,165,938,276.23
  5. Step 5: Solve for x
    x = 7,165,938,276.23/109,964.17
  6. Step 6: Final answer
    x = 65,166.12

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1.5x scale

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.