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Finding the Fourth Proportional to 101,666.31, 140,299.32 and 55,725.92

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Solution

The fourth proportional to 101,666.31, 140,299.32 and 55,725.92 is: 76,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,666.31 : 140,299.32 = 55,725.92 : x
  2. Step 2: Convert to fraction form
    101,666.31/140,299.32 = 55,725.92/x
  3. Step 3: Cross multiply
    101,666.31x = 140,299.32 × 55,725.92
  4. Step 4: Simplify right side
    101,666.31x = 7,818,308,682.37
  5. Step 5: Solve for x
    x = 7,818,308,682.37/101,666.31
  6. Step 6: Final answer
    x = 76,901.67

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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.