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Finding the Fourth Proportional to 98,408.40, 148,001.40 and 88,299.60

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Solution

The fourth proportional to 98,408.40, 148,001.40 and 88,299.60 is: 132,798.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,408.40 : 148,001.40 = 88,299.60 : x
  2. Step 2: Convert to fraction form
    98,408.40/148,001.40 = 88,299.60/x
  3. Step 3: Cross multiply
    98,408.40x = 148,001.40 × 88,299.60
  4. Step 4: Simplify right side
    98,408.40x = 13,068,464,419.44
  5. Step 5: Solve for x
    x = 13,068,464,419.44/98,408.40
  6. Step 6: Final answer
    x = 132,798.26

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1.5x scale

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.