Home / 198,973.08-298,271.96-99,038.78

Finding the Fourth Proportional to 198,973.08, 298,271.96 and 99,038.78

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Solution

The fourth proportional to 198,973.08, 298,271.96 and 99,038.78 is: 148,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,973.08 : 298,271.96 = 99,038.78 : x
  2. Step 2: Convert to fraction form
    198,973.08/298,271.96 = 99,038.78/x
  3. Step 3: Cross multiply
    198,973.08x = 298,271.96 × 99,038.78
  4. Step 4: Simplify right side
    198,973.08x = 29,540,491,026.61
  5. Step 5: Solve for x
    x = 29,540,491,026.61/198,973.08
  6. Step 6: Final answer
    x = 148,464.76

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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.