Home / 259,922.25-390,038.90-112,178.25

Finding the Fourth Proportional to 259,922.25, 390,038.90 and 112,178.25

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Solution

The fourth proportional to 259,922.25, 390,038.90 and 112,178.25 is: 168,334.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,922.25 : 390,038.90 = 112,178.25 : x
  2. Step 2: Convert to fraction form
    259,922.25/390,038.90 = 112,178.25/x
  3. Step 3: Cross multiply
    259,922.25x = 390,038.90 × 112,178.25
  4. Step 4: Simplify right side
    259,922.25x = 43,753,880,673.03
  5. Step 5: Solve for x
    x = 43,753,880,673.03/259,922.25
  6. Step 6: Final answer
    x = 168,334.49

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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.