Home / 109,146.11-150,621.41-61,399.49

Finding the Fourth Proportional to 109,146.11, 150,621.41 and 61,399.49

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Solution

The fourth proportional to 109,146.11, 150,621.41 and 61,399.49 is: 84,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,146.11 : 150,621.41 = 61,399.49 : x
  2. Step 2: Convert to fraction form
    109,146.11/150,621.41 = 61,399.49/x
  3. Step 3: Cross multiply
    109,146.11x = 150,621.41 × 61,399.49
  4. Step 4: Simplify right side
    109,146.11x = 9,248,077,492.05
  5. Step 5: Solve for x
    x = 9,248,077,492.05/109,146.11
  6. Step 6: Final answer
    x = 84,731.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.