Home / 102,904.80-154,357.20-98,968.20

Finding the Fourth Proportional to 102,904.80, 154,357.20 and 98,968.20

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Solution

The fourth proportional to 102,904.80, 154,357.20 and 98,968.20 is: 148,452.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.80 : 154,357.20 = 98,968.20 : x
  2. Step 2: Convert to fraction form
    102,904.80/154,357.20 = 98,968.20/x
  3. Step 3: Cross multiply
    102,904.80x = 154,357.20 × 98,968.20
  4. Step 4: Simplify right side
    102,904.80x = 15,276,454,241.04
  5. Step 5: Solve for x
    x = 15,276,454,241.04/102,904.80
  6. Step 6: Final answer
    x = 148,452.30

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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.