Home / 104,161.90-155,328.18-103,214.66

Finding the Fourth Proportional to 104,161.90, 155,328.18 and 103,214.66

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Solution

The fourth proportional to 104,161.90, 155,328.18 and 103,214.66 is: 153,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,161.90 : 155,328.18 = 103,214.66 : x
  2. Step 2: Convert to fraction form
    104,161.90/155,328.18 = 103,214.66/x
  3. Step 3: Cross multiply
    104,161.90x = 155,328.18 × 103,214.66
  4. Step 4: Simplify right side
    104,161.90x = 16,032,145,287.12
  5. Step 5: Solve for x
    x = 16,032,145,287.12/104,161.90
  6. Step 6: Final answer
    x = 153,915.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.