Home / 145,849.20-218,428.20-98,847.60

Finding the Fourth Proportional to 145,849.20, 218,428.20 and 98,847.60

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Solution

The fourth proportional to 145,849.20, 218,428.20 and 98,847.60 is: 148,037.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,849.20 : 218,428.20 = 98,847.60 : x
  2. Step 2: Convert to fraction form
    145,849.20/218,428.20 = 98,847.60/x
  3. Step 3: Cross multiply
    145,849.20x = 218,428.20 × 98,847.60
  4. Step 4: Simplify right side
    145,849.20x = 21,591,103,342.32
  5. Step 5: Solve for x
    x = 21,591,103,342.32/145,849.20
  6. Step 6: Final answer
    x = 148,037.17

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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.