Home / 103,970.04-155,846.52-75,438.06

Finding the Fourth Proportional to 103,970.04, 155,846.52 and 75,438.06

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Solution

The fourth proportional to 103,970.04, 155,846.52 and 75,438.06 is: 113,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,970.04 : 155,846.52 = 75,438.06 : x
  2. Step 2: Convert to fraction form
    103,970.04/155,846.52 = 75,438.06/x
  3. Step 3: Cross multiply
    103,970.04x = 155,846.52 × 75,438.06
  4. Step 4: Simplify right side
    103,970.04x = 11,756,758,359.74
  5. Step 5: Solve for x
    x = 11,756,758,359.74/103,970.04
  6. Step 6: Final answer
    x = 113,078.33

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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.