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Finding the Fourth Proportional to 102,119.69, 140,915.30 and 59,090.60

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Solution

The fourth proportional to 102,119.69, 140,915.30 and 59,090.60 is: 81,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,119.69 : 140,915.30 = 59,090.60 : x
  2. Step 2: Convert to fraction form
    102,119.69/140,915.30 = 59,090.60/x
  3. Step 3: Cross multiply
    102,119.69x = 140,915.30 × 59,090.60
  4. Step 4: Simplify right side
    102,119.69x = 8,326,769,626.18
  5. Step 5: Solve for x
    x = 8,326,769,626.18/102,119.69
  6. Step 6: Final answer
    x = 81,539.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.