Home / 140,688.80-194,155.43-77,027.03

Finding the Fourth Proportional to 140,688.80, 194,155.43 and 77,027.03

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Solution

The fourth proportional to 140,688.80, 194,155.43 and 77,027.03 is: 106,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,688.80 : 194,155.43 = 77,027.03 : x
  2. Step 2: Convert to fraction form
    140,688.80/194,155.43 = 77,027.03/x
  3. Step 3: Cross multiply
    140,688.80x = 194,155.43 × 77,027.03
  4. Step 4: Simplify right side
    140,688.80x = 14,955,216,131.27
  5. Step 5: Solve for x
    x = 14,955,216,131.27/140,688.80
  6. Step 6: Final answer
    x = 106,299.98

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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.