Home / 103,434.87-155,007.64-55,947.40

Finding the Fourth Proportional to 103,434.87, 155,007.64 and 55,947.40

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Solution

The fourth proportional to 103,434.87, 155,007.64 and 55,947.40 is: 83,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,434.87 : 155,007.64 = 55,947.40 : x
  2. Step 2: Convert to fraction form
    103,434.87/155,007.64 = 55,947.40/x
  3. Step 3: Cross multiply
    103,434.87x = 155,007.64 × 55,947.40
  4. Step 4: Simplify right side
    103,434.87x = 8,672,274,438.14
  5. Step 5: Solve for x
    x = 8,672,274,438.14/103,434.87
  6. Step 6: Final answer
    x = 83,842.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.