Home / 209,835.12-289,574.04-114,344.40

Finding the Fourth Proportional to 209,835.12, 289,574.04 and 114,344.40

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Solution

The fourth proportional to 209,835.12, 289,574.04 and 114,344.40 is: 157,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,835.12 : 289,574.04 = 114,344.40 : x
  2. Step 2: Convert to fraction form
    209,835.12/289,574.04 = 114,344.40/x
  3. Step 3: Cross multiply
    209,835.12x = 289,574.04 × 114,344.40
  4. Step 4: Simplify right side
    209,835.12x = 33,111,169,859.38
  5. Step 5: Solve for x
    x = 33,111,169,859.38/209,835.12
  6. Step 6: Final answer
    x = 157,796.13

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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.