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Finding the Fourth Proportional to 98,800.60, 148,200.90 and 68,733.40

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Solution

The fourth proportional to 98,800.60, 148,200.90 and 68,733.40 is: 103,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,800.60 : 148,200.90 = 68,733.40 : x
  2. Step 2: Convert to fraction form
    98,800.60/148,200.90 = 68,733.40/x
  3. Step 3: Cross multiply
    98,800.60x = 148,200.90 × 68,733.40
  4. Step 4: Simplify right side
    98,800.60x = 10,186,351,740.06
  5. Step 5: Solve for x
    x = 10,186,351,740.06/98,800.60
  6. Step 6: Final answer
    x = 103,100.10

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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.