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Finding the Fourth Proportional to 98,745.60, 148,118.40 and 43,341.60

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Solution

The fourth proportional to 98,745.60, 148,118.40 and 43,341.60 is: 65,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,745.60 : 148,118.40 = 43,341.60 : x
  2. Step 2: Convert to fraction form
    98,745.60/148,118.40 = 43,341.60/x
  3. Step 3: Cross multiply
    98,745.60x = 148,118.40 × 43,341.60
  4. Step 4: Simplify right side
    98,745.60x = 6,419,688,445.44
  5. Step 5: Solve for x
    x = 6,419,688,445.44/98,745.60
  6. Step 6: Final answer
    x = 65,012.40

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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.