Home / 103,624.85-155,667.68-100,860.05

Finding the Fourth Proportional to 103,624.85, 155,667.68 and 100,860.05

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Solution

The fourth proportional to 103,624.85, 155,667.68 and 100,860.05 is: 151,514.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,624.85 : 155,667.68 = 100,860.05 : x
  2. Step 2: Convert to fraction form
    103,624.85/155,667.68 = 100,860.05/x
  3. Step 3: Cross multiply
    103,624.85x = 155,667.68 × 100,860.05
  4. Step 4: Simplify right side
    103,624.85x = 15,700,649,988.18
  5. Step 5: Solve for x
    x = 15,700,649,988.18/103,624.85
  6. Step 6: Final answer
    x = 151,514.33

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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.