Home / 191,039.78-263,636.10-119,461.70

Finding the Fourth Proportional to 191,039.78, 263,636.10 and 119,461.70

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Solution

The fourth proportional to 191,039.78, 263,636.10 and 119,461.70 is: 164,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,039.78 : 263,636.10 = 119,461.70 : x
  2. Step 2: Convert to fraction form
    191,039.78/263,636.10 = 119,461.70/x
  3. Step 3: Cross multiply
    191,039.78x = 263,636.10 × 119,461.70
  4. Step 4: Simplify right side
    191,039.78x = 31,494,417,346.46
  5. Step 5: Solve for x
    x = 31,494,417,346.46/191,039.78
  6. Step 6: Final answer
    x = 164,857.90

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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.