Home / 203,578.72-280,938.30-112,948.50

Finding the Fourth Proportional to 203,578.72, 280,938.30 and 112,948.50

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Solution

The fourth proportional to 203,578.72, 280,938.30 and 112,948.50 is: 155,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,578.72 : 280,938.30 = 112,948.50 : x
  2. Step 2: Convert to fraction form
    203,578.72/280,938.30 = 112,948.50/x
  3. Step 3: Cross multiply
    203,578.72x = 280,938.30 × 112,948.50
  4. Step 4: Simplify right side
    203,578.72x = 31,731,559,577.55
  5. Step 5: Solve for x
    x = 31,731,559,577.55/203,578.72
  6. Step 6: Final answer
    x = 155,868.74

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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.