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Finding the Fourth Proportional to 98,176.40, 147,264.60 and 68,627.60

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Solution

The fourth proportional to 98,176.40, 147,264.60 and 68,627.60 is: 102,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,176.40 : 147,264.60 = 68,627.60 : x
  2. Step 2: Convert to fraction form
    98,176.40/147,264.60 = 68,627.60/x
  3. Step 3: Cross multiply
    98,176.40x = 147,264.60 × 68,627.60
  4. Step 4: Simplify right side
    98,176.40x = 10,106,416,062.96
  5. Step 5: Solve for x
    x = 10,106,416,062.96/98,176.40
  6. Step 6: Final answer
    x = 102,941.40

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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.