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Finding the Fourth Proportional to 103,647.06, 142,935.03 and 95,915.34

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Solution

The fourth proportional to 103,647.06, 142,935.03 and 95,915.34 is: 132,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,647.06 : 142,935.03 = 95,915.34 : x
  2. Step 2: Convert to fraction form
    103,647.06/142,935.03 = 95,915.34/x
  3. Step 3: Cross multiply
    103,647.06x = 142,935.03 × 95,915.34
  4. Step 4: Simplify right side
    103,647.06x = 13,709,662,000.36
  5. Step 5: Solve for x
    x = 13,709,662,000.36/103,647.06
  6. Step 6: Final answer
    x = 132,272.56

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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.