Home / 191,190.78-263,848.59-106,313.58

Finding the Fourth Proportional to 191,190.78, 263,848.59 and 106,313.58

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Solution

The fourth proportional to 191,190.78, 263,848.59 and 106,313.58 is: 146,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,190.78 : 263,848.59 = 106,313.58 : x
  2. Step 2: Convert to fraction form
    191,190.78/263,848.59 = 106,313.58/x
  3. Step 3: Cross multiply
    191,190.78x = 263,848.59 × 106,313.58
  4. Step 4: Simplify right side
    191,190.78x = 28,050,688,180.85
  5. Step 5: Solve for x
    x = 28,050,688,180.85/191,190.78
  6. Step 6: Final answer
    x = 146,715.70

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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.