Home / 209,762.19-289,462.44-122,555.34

Finding the Fourth Proportional to 209,762.19, 289,462.44 and 122,555.34

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Solution

The fourth proportional to 209,762.19, 289,462.44 and 122,555.34 is: 169,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,762.19 : 289,462.44 = 122,555.34 : x
  2. Step 2: Convert to fraction form
    209,762.19/289,462.44 = 122,555.34/x
  3. Step 3: Cross multiply
    209,762.19x = 289,462.44 × 122,555.34
  4. Step 4: Simplify right side
    209,762.19x = 35,475,167,751.43
  5. Step 5: Solve for x
    x = 35,475,167,751.43/209,762.19
  6. Step 6: Final answer
    x = 169,120.89

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1.5x scale

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.