Home / 109,114.08-150,662.16-85,199.28

Finding the Fourth Proportional to 109,114.08, 150,662.16 and 85,199.28

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Solution

The fourth proportional to 109,114.08, 150,662.16 and 85,199.28 is: 117,641.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,114.08 : 150,662.16 = 85,199.28 : x
  2. Step 2: Convert to fraction form
    109,114.08/150,662.16 = 85,199.28/x
  3. Step 3: Cross multiply
    109,114.08x = 150,662.16 × 85,199.28
  4. Step 4: Simplify right side
    109,114.08x = 12,836,307,555.24
  5. Step 5: Solve for x
    x = 12,836,307,555.24/109,114.08
  6. Step 6: Final answer
    x = 117,641.17

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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.