Home / 145,404.20-218,106.33-45,564.38

Finding the Fourth Proportional to 145,404.20, 218,106.33 and 45,564.38

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Solution

The fourth proportional to 145,404.20, 218,106.33 and 45,564.38 is: 68,346.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,404.20 : 218,106.33 = 45,564.38 : x
  2. Step 2: Convert to fraction form
    145,404.20/218,106.33 = 45,564.38/x
  3. Step 3: Cross multiply
    145,404.20x = 218,106.33 × 45,564.38
  4. Step 4: Simplify right side
    145,404.20x = 9,937,878,609.99
  5. Step 5: Solve for x
    x = 9,937,878,609.99/145,404.20
  6. Step 6: Final answer
    x = 68,346.57

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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.