Home / 127,614.12-191,086.75-89,970.38

Finding the Fourth Proportional to 127,614.12, 191,086.75 and 89,970.38

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Solution

The fourth proportional to 127,614.12, 191,086.75 and 89,970.38 is: 134,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,614.12 : 191,086.75 = 89,970.38 : x
  2. Step 2: Convert to fraction form
    127,614.12/191,086.75 = 89,970.38/x
  3. Step 3: Cross multiply
    127,614.12x = 191,086.75 × 89,970.38
  4. Step 4: Simplify right side
    127,614.12x = 17,192,146,877.99
  5. Step 5: Solve for x
    x = 17,192,146,877.99/127,614.12
  6. Step 6: Final answer
    x = 134,719.79

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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.