Home / 127,586.09-191,160.43-90,079.04

Finding the Fourth Proportional to 127,586.09, 191,160.43 and 90,079.04

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Solution

The fourth proportional to 127,586.09, 191,160.43 and 90,079.04 is: 134,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,586.09 : 191,160.43 = 90,079.04 : x
  2. Step 2: Convert to fraction form
    127,586.09/191,160.43 = 90,079.04/x
  3. Step 3: Cross multiply
    127,586.09x = 191,160.43 × 90,079.04
  4. Step 4: Simplify right side
    127,586.09x = 17,219,548,273.09
  5. Step 5: Solve for x
    x = 17,219,548,273.09/127,586.09
  6. Step 6: Final answer
    x = 134,964.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.