Home / 191,189.08-263,841.08-105,149.42

Finding the Fourth Proportional to 191,189.08, 263,841.08 and 105,149.42

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Solution

The fourth proportional to 191,189.08, 263,841.08 and 105,149.42 is: 145,106.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,189.08 : 263,841.08 = 105,149.42 : x
  2. Step 2: Convert to fraction form
    191,189.08/263,841.08 = 105,149.42/x
  3. Step 3: Cross multiply
    191,189.08x = 263,841.08 × 105,149.42
  4. Step 4: Simplify right side
    191,189.08x = 27,742,736,534.17
  5. Step 5: Solve for x
    x = 27,742,736,534.17/191,189.08
  6. Step 6: Final answer
    x = 145,106.28

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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.