Home / 109,069.26-163,536.90-42,431.73

Finding the Fourth Proportional to 109,069.26, 163,536.90 and 42,431.73

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Solution

The fourth proportional to 109,069.26, 163,536.90 and 42,431.73 is: 63,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,069.26 : 163,536.90 = 42,431.73 : x
  2. Step 2: Convert to fraction form
    109,069.26/163,536.90 = 42,431.73/x
  3. Step 3: Cross multiply
    109,069.26x = 163,536.90 × 42,431.73
  4. Step 4: Simplify right side
    109,069.26x = 6,939,153,585.84
  5. Step 5: Solve for x
    x = 6,939,153,585.84/109,069.26
  6. Step 6: Final answer
    x = 63,621.53

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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.