Home / 147,899.30-221,593.80-68,851.40

Finding the Fourth Proportional to 147,899.30, 221,593.80 and 68,851.40

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Solution

The fourth proportional to 147,899.30, 221,593.80 and 68,851.40 is: 103,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,899.30 : 221,593.80 = 68,851.40 : x
  2. Step 2: Convert to fraction form
    147,899.30/221,593.80 = 68,851.40/x
  3. Step 3: Cross multiply
    147,899.30x = 221,593.80 × 68,851.40
  4. Step 4: Simplify right side
    147,899.30x = 15,257,043,361.32
  5. Step 5: Solve for x
    x = 15,257,043,361.32/147,899.30
  6. Step 6: Final answer
    x = 103,158.32

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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.