Home / 162,389.21-243,578.07-73,580.54

Finding the Fourth Proportional to 162,389.21, 243,578.07 and 73,580.54

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Solution

The fourth proportional to 162,389.21, 243,578.07 and 73,580.54 is: 110,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,389.21 : 243,578.07 = 73,580.54 : x
  2. Step 2: Convert to fraction form
    162,389.21/243,578.07 = 73,580.54/x
  3. Step 3: Cross multiply
    162,389.21x = 243,578.07 × 73,580.54
  4. Step 4: Simplify right side
    162,389.21x = 17,922,604,704.87
  5. Step 5: Solve for x
    x = 17,922,604,704.87/162,389.21
  6. Step 6: Final answer
    x = 110,368.20

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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.