Home / 103,826.60-155,739.90-101,858.30

Finding the Fourth Proportional to 103,826.60, 155,739.90 and 101,858.30

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Solution

The fourth proportional to 103,826.60, 155,739.90 and 101,858.30 is: 152,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,826.60 : 155,739.90 = 101,858.30 : x
  2. Step 2: Convert to fraction form
    103,826.60/155,739.90 = 101,858.30/x
  3. Step 3: Cross multiply
    103,826.60x = 155,739.90 × 101,858.30
  4. Step 4: Simplify right side
    103,826.60x = 15,863,401,456.17
  5. Step 5: Solve for x
    x = 15,863,401,456.17/103,826.60
  6. Step 6: Final answer
    x = 152,787.45

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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.