Home / 198,002.02-297,008.70-71,653.90

Finding the Fourth Proportional to 198,002.02, 297,008.70 and 71,653.90

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Solution

The fourth proportional to 198,002.02, 297,008.70 and 71,653.90 is: 107,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,002.02 : 297,008.70 = 71,653.90 : x
  2. Step 2: Convert to fraction form
    198,002.02/297,008.70 = 71,653.90/x
  3. Step 3: Cross multiply
    198,002.02x = 297,008.70 × 71,653.90
  4. Step 4: Simplify right side
    198,002.02x = 21,281,831,688.93
  5. Step 5: Solve for x
    x = 21,281,831,688.93/198,002.02
  6. Step 6: Final answer
    x = 107,482.90

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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.