Home / 191,683.13-264,522.69-105,642.09

Finding the Fourth Proportional to 191,683.13, 264,522.69 and 105,642.09

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Solution

The fourth proportional to 191,683.13, 264,522.69 and 105,642.09 is: 145,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,683.13 : 264,522.69 = 105,642.09 : x
  2. Step 2: Convert to fraction form
    191,683.13/264,522.69 = 105,642.09/x
  3. Step 3: Cross multiply
    191,683.13x = 264,522.69 × 105,642.09
  4. Step 4: Simplify right side
    191,683.13x = 27,944,729,824.02
  5. Step 5: Solve for x
    x = 27,944,729,824.02/191,683.13
  6. Step 6: Final answer
    x = 145,786.07

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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.