Home / 109,957.12-151,640.64-92,996.92

Finding the Fourth Proportional to 109,957.12, 151,640.64 and 92,996.92

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Solution

The fourth proportional to 109,957.12, 151,640.64 and 92,996.92 is: 128,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,957.12 : 151,640.64 = 92,996.92 : x
  2. Step 2: Convert to fraction form
    109,957.12/151,640.64 = 92,996.92/x
  3. Step 3: Cross multiply
    109,957.12x = 151,640.64 × 92,996.92
  4. Step 4: Simplify right side
    109,957.12x = 14,102,112,466.83
  5. Step 5: Solve for x
    x = 14,102,112,466.83/109,957.12
  6. Step 6: Final answer
    x = 128,251.02

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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.