Home / 109,077.49-163,619.81-30,185.11

Finding the Fourth Proportional to 109,077.49, 163,619.81 and 30,185.11

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Solution

The fourth proportional to 109,077.49, 163,619.81 and 30,185.11 is: 45,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,077.49 : 163,619.81 = 30,185.11 : x
  2. Step 2: Convert to fraction form
    109,077.49/163,619.81 = 30,185.11/x
  3. Step 3: Cross multiply
    109,077.49x = 163,619.81 × 30,185.11
  4. Step 4: Simplify right side
    109,077.49x = 4,938,882,038.49
  5. Step 5: Solve for x
    x = 4,938,882,038.49/109,077.49
  6. Step 6: Final answer
    x = 45,278.66

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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.