Home / 191,191.13-263,838.19-105,150.02

Finding the Fourth Proportional to 191,191.13, 263,838.19 and 105,150.02

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Solution

The fourth proportional to 191,191.13, 263,838.19 and 105,150.02 is: 145,103.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,191.13 : 263,838.19 = 105,150.02 : x
  2. Step 2: Convert to fraction form
    191,191.13/263,838.19 = 105,150.02/x
  3. Step 3: Cross multiply
    191,191.13x = 263,838.19 × 105,150.02
  4. Step 4: Simplify right side
    191,191.13x = 27,742,591,500.75
  5. Step 5: Solve for x
    x = 27,742,591,500.75/191,191.13
  6. Step 6: Final answer
    x = 145,103.96

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1.5x scale

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.