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Finding the Fourth Proportional to 98,808.60, 148,212.90 and 43,404.60

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Solution

The fourth proportional to 98,808.60, 148,212.90 and 43,404.60 is: 65,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,808.60 : 148,212.90 = 43,404.60 : x
  2. Step 2: Convert to fraction form
    98,808.60/148,212.90 = 43,404.60/x
  3. Step 3: Cross multiply
    98,808.60x = 148,212.90 × 43,404.60
  4. Step 4: Simplify right side
    98,808.60x = 6,433,121,639.34
  5. Step 5: Solve for x
    x = 6,433,121,639.34/98,808.60
  6. Step 6: Final answer
    x = 65,106.90

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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.