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Finding the Fourth Proportional to 103,549.88, 155,325.02 and 28,670.24

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Solution

The fourth proportional to 103,549.88, 155,325.02 and 28,670.24 is: 43,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,549.88 : 155,325.02 = 28,670.24 : x
  2. Step 2: Convert to fraction form
    103,549.88/155,325.02 = 28,670.24/x
  3. Step 3: Cross multiply
    103,549.88x = 155,325.02 × 28,670.24
  4. Step 4: Simplify right side
    103,549.88x = 4,453,205,601.40
  5. Step 5: Solve for x
    x = 4,453,205,601.40/103,549.88
  6. Step 6: Final answer
    x = 43,005.42

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1.5x scale

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.