Home / 190,817.12-286,356.91-66,158.12

Finding the Fourth Proportional to 190,817.12, 286,356.91 and 66,158.12

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Solution

The fourth proportional to 190,817.12, 286,356.91 and 66,158.12 is: 99,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,817.12 : 286,356.91 = 66,158.12 : x
  2. Step 2: Convert to fraction form
    190,817.12/286,356.91 = 66,158.12/x
  3. Step 3: Cross multiply
    190,817.12x = 286,356.91 × 66,158.12
  4. Step 4: Simplify right side
    190,817.12x = 18,944,834,814.61
  5. Step 5: Solve for x
    x = 18,944,834,814.61/190,817.12
  6. Step 6: Final answer
    x = 99,282.68

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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.