Home / 109,772.66-151,477.90-66,746.18

Finding the Fourth Proportional to 109,772.66, 151,477.90 and 66,746.18

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Solution

The fourth proportional to 109,772.66, 151,477.90 and 66,746.18 is: 92,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,772.66 : 151,477.90 = 66,746.18 : x
  2. Step 2: Convert to fraction form
    109,772.66/151,477.90 = 66,746.18/x
  3. Step 3: Cross multiply
    109,772.66x = 151,477.90 × 66,746.18
  4. Step 4: Simplify right side
    109,772.66x = 10,110,571,179.42
  5. Step 5: Solve for x
    x = 10,110,571,179.42/109,772.66
  6. Step 6: Final answer
    x = 92,104.64

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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.