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Finding the Fourth Proportional to 104,170.90, 155,341.60 and 103,223.66

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Solution

The fourth proportional to 104,170.90, 155,341.60 and 103,223.66 is: 153,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,170.90 : 155,341.60 = 103,223.66 : x
  2. Step 2: Convert to fraction form
    104,170.90/155,341.60 = 103,223.66/x
  3. Step 3: Cross multiply
    104,170.90x = 155,341.60 × 103,223.66
  4. Step 4: Simplify right side
    104,170.90x = 16,034,928,502.26
  5. Step 5: Solve for x
    x = 16,034,928,502.26/104,170.90
  6. Step 6: Final answer
    x = 153,929.06

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1.5x scale

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.