Home / 199,579.04-299,420.40-99,735.20

Finding the Fourth Proportional to 199,579.04, 299,420.40 and 99,735.20

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Solution

The fourth proportional to 199,579.04, 299,420.40 and 99,735.20 is: 149,628.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,579.04 : 299,420.40 = 99,735.20 : x
  2. Step 2: Convert to fraction form
    199,579.04/299,420.40 = 99,735.20/x
  3. Step 3: Cross multiply
    199,579.04x = 299,420.40 × 99,735.20
  4. Step 4: Simplify right side
    199,579.04x = 29,862,751,980.98
  5. Step 5: Solve for x
    x = 29,862,751,980.98/199,579.04
  6. Step 6: Final answer
    x = 149,628.70

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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.