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Finding the Fourth Proportional to 155,495.70, 233,243.55 and 66,734.10

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Solution

The fourth proportional to 155,495.70, 233,243.55 and 66,734.10 is: 100,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,495.70 : 233,243.55 = 66,734.10 : x
  2. Step 2: Convert to fraction form
    155,495.70/233,243.55 = 66,734.10/x
  3. Step 3: Cross multiply
    155,495.70x = 233,243.55 × 66,734.10
  4. Step 4: Simplify right side
    155,495.70x = 15,565,298,390.06
  5. Step 5: Solve for x
    x = 15,565,298,390.06/155,495.70
  6. Step 6: Final answer
    x = 100,101.15

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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.