Home / 198,355.40-273,730.14-108,931.40

Finding the Fourth Proportional to 198,355.40, 273,730.14 and 108,931.40

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Solution

The fourth proportional to 198,355.40, 273,730.14 and 108,931.40 is: 150,325.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,355.40 : 273,730.14 = 108,931.40 : x
  2. Step 2: Convert to fraction form
    198,355.40/273,730.14 = 108,931.40/x
  3. Step 3: Cross multiply
    198,355.40x = 273,730.14 × 108,931.40
  4. Step 4: Simplify right side
    198,355.40x = 29,817,807,372.40
  5. Step 5: Solve for x
    x = 29,817,807,372.40/198,355.40
  6. Step 6: Final answer
    x = 150,325.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.