Home / 186,788.45-280,181.72-72,947.81

Finding the Fourth Proportional to 186,788.45, 280,181.72 and 72,947.81

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Solution

The fourth proportional to 186,788.45, 280,181.72 and 72,947.81 is: 109,421.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,788.45 : 280,181.72 = 72,947.81 : x
  2. Step 2: Convert to fraction form
    186,788.45/280,181.72 = 72,947.81/x
  3. Step 3: Cross multiply
    186,788.45x = 280,181.72 × 72,947.81
  4. Step 4: Simplify right side
    186,788.45x = 20,438,643,348.53
  5. Step 5: Solve for x
    x = 20,438,643,348.53/186,788.45
  6. Step 6: Final answer
    x = 109,421.34

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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.