Home / 109,438.65-164,030.40-50,280.30

Finding the Fourth Proportional to 109,438.65, 164,030.40 and 50,280.30

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Solution

The fourth proportional to 109,438.65, 164,030.40 and 50,280.30 is: 75,361.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,438.65 : 164,030.40 = 50,280.30 : x
  2. Step 2: Convert to fraction form
    109,438.65/164,030.40 = 50,280.30/x
  3. Step 3: Cross multiply
    109,438.65x = 164,030.40 × 50,280.30
  4. Step 4: Simplify right side
    109,438.65x = 8,247,497,721.12
  5. Step 5: Solve for x
    x = 8,247,497,721.12/109,438.65
  6. Step 6: Final answer
    x = 75,361.84

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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.