Home / 190,717.68-286,101.63-70,758.30

Finding the Fourth Proportional to 190,717.68, 286,101.63 and 70,758.30

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Solution

The fourth proportional to 190,717.68, 286,101.63 and 70,758.30 is: 106,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,717.68 : 286,101.63 = 70,758.30 : x
  2. Step 2: Convert to fraction form
    190,717.68/286,101.63 = 70,758.30/x
  3. Step 3: Cross multiply
    190,717.68x = 286,101.63 × 70,758.30
  4. Step 4: Simplify right side
    190,717.68x = 20,244,064,966.03
  5. Step 5: Solve for x
    x = 20,244,064,966.03/190,717.68
  6. Step 6: Final answer
    x = 106,146.77

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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.