Home / 209,397.65-288,970.97-113,904.59

Finding the Fourth Proportional to 209,397.65, 288,970.97 and 113,904.59

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Solution

The fourth proportional to 209,397.65, 288,970.97 and 113,904.59 is: 157,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,397.65 : 288,970.97 = 113,904.59 : x
  2. Step 2: Convert to fraction form
    209,397.65/288,970.97 = 113,904.59/x
  3. Step 3: Cross multiply
    209,397.65x = 288,970.97 × 113,904.59
  4. Step 4: Simplify right side
    209,397.65x = 32,915,117,845.37
  5. Step 5: Solve for x
    x = 32,915,117,845.37/209,397.65
  6. Step 6: Final answer
    x = 157,189.53

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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.