Home / 209,870.40-289,612.71-114,375.03

Finding the Fourth Proportional to 209,870.40, 289,612.71 and 114,375.03

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Solution

The fourth proportional to 209,870.40, 289,612.71 and 114,375.03 is: 157,832.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,870.40 : 289,612.71 = 114,375.03 : x
  2. Step 2: Convert to fraction form
    209,870.40/289,612.71 = 114,375.03/x
  3. Step 3: Cross multiply
    209,870.40x = 289,612.71 × 114,375.03
  4. Step 4: Simplify right side
    209,870.40x = 33,124,462,394.63
  5. Step 5: Solve for x
    x = 33,124,462,394.63/209,870.40
  6. Step 6: Final answer
    x = 157,832.94

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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.