Home / 191,136.12-263,774.61-105,101.64

Finding the Fourth Proportional to 191,136.12, 263,774.61 and 105,101.64

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Solution

The fourth proportional to 191,136.12, 263,774.61 and 105,101.64 is: 145,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,136.12 : 263,774.61 = 105,101.64 : x
  2. Step 2: Convert to fraction form
    191,136.12/263,774.61 = 105,101.64/x
  3. Step 3: Cross multiply
    191,136.12x = 263,774.61 × 105,101.64
  4. Step 4: Simplify right side
    191,136.12x = 27,723,144,101.36
  5. Step 5: Solve for x
    x = 27,723,144,101.36/191,136.12
  6. Step 6: Final answer
    x = 145,043.98

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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.