Home / 295,125.18-442,638.25-81,914.76

Finding the Fourth Proportional to 295,125.18, 442,638.25 and 81,914.76

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Solution

The fourth proportional to 295,125.18, 442,638.25 and 81,914.76 is: 122,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,125.18 : 442,638.25 = 81,914.76 : x
  2. Step 2: Convert to fraction form
    295,125.18/442,638.25 = 81,914.76/x
  3. Step 3: Cross multiply
    295,125.18x = 442,638.25 × 81,914.76
  4. Step 4: Simplify right side
    295,125.18x = 36,258,606,015.57
  5. Step 5: Solve for x
    x = 36,258,606,015.57/295,125.18
  6. Step 6: Final answer
    x = 122,858.40

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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.