Home / 109,509.97-151,156.07-64,197.76

Finding the Fourth Proportional to 109,509.97, 151,156.07 and 64,197.76

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Solution

The fourth proportional to 109,509.97, 151,156.07 and 64,197.76 is: 88,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,509.97 : 151,156.07 = 64,197.76 : x
  2. Step 2: Convert to fraction form
    109,509.97/151,156.07 = 64,197.76/x
  3. Step 3: Cross multiply
    109,509.97x = 151,156.07 × 64,197.76
  4. Step 4: Simplify right side
    109,509.97x = 9,703,880,887.01
  5. Step 5: Solve for x
    x = 9,703,880,887.01/109,509.97
  6. Step 6: Final answer
    x = 88,611.85

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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.