Home / 102,015.10-152,913.30-38,810.80

Finding the Fourth Proportional to 102,015.10, 152,913.30 and 38,810.80

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Solution

The fourth proportional to 102,015.10, 152,913.30 and 38,810.80 is: 58,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,015.10 : 152,913.30 = 38,810.80 : x
  2. Step 2: Convert to fraction form
    102,015.10/152,913.30 = 38,810.80/x
  3. Step 3: Cross multiply
    102,015.10x = 152,913.30 × 38,810.80
  4. Step 4: Simplify right side
    102,015.10x = 5,934,687,503.64
  5. Step 5: Solve for x
    x = 5,934,687,503.64/102,015.10
  6. Step 6: Final answer
    x = 58,174.60

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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.