Home / 189,210.88-261,174.28-112,753.95

Finding the Fourth Proportional to 189,210.88, 261,174.28 and 112,753.95

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Solution

The fourth proportional to 189,210.88, 261,174.28 and 112,753.95 is: 155,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,210.88 : 261,174.28 = 112,753.95 : x
  2. Step 2: Convert to fraction form
    189,210.88/261,174.28 = 112,753.95/x
  3. Step 3: Cross multiply
    189,210.88x = 261,174.28 × 112,753.95
  4. Step 4: Simplify right side
    189,210.88x = 29,448,431,571.06
  5. Step 5: Solve for x
    x = 29,448,431,571.06/189,210.88
  6. Step 6: Final answer
    x = 155,638.15

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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.