Home / 103,677.03-155,515.55-51,189.03

Finding the Fourth Proportional to 103,677.03, 155,515.55 and 51,189.03

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Solution

The fourth proportional to 103,677.03, 155,515.55 and 51,189.03 is: 76,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.03 : 155,515.55 = 51,189.03 : x
  2. Step 2: Convert to fraction form
    103,677.03/155,515.55 = 51,189.03/x
  3. Step 3: Cross multiply
    103,677.03x = 155,515.55 × 51,189.03
  4. Step 4: Simplify right side
    103,677.03x = 7,960,690,154.42
  5. Step 5: Solve for x
    x = 7,960,690,154.42/103,677.03
  6. Step 6: Final answer
    x = 76,783.55

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1.5x scale

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.