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Finding the Fourth Proportional to 155,172.17, 214,137.74 and 88,104.17

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Solution

The fourth proportional to 155,172.17, 214,137.74 and 88,104.17 is: 121,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,172.17 : 214,137.74 = 88,104.17 : x
  2. Step 2: Convert to fraction form
    155,172.17/214,137.74 = 88,104.17/x
  3. Step 3: Cross multiply
    155,172.17x = 214,137.74 × 88,104.17
  4. Step 4: Simplify right side
    155,172.17x = 18,866,427,848.38
  5. Step 5: Solve for x
    x = 18,866,427,848.38/155,172.17
  6. Step 6: Final answer
    x = 121,583.84

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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.