Home / 121,802.37-168,091.01-68,089.65

Finding the Fourth Proportional to 121,802.37, 168,091.01 and 68,089.65

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Solution

The fourth proportional to 121,802.37, 168,091.01 and 68,089.65 is: 93,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,802.37 : 168,091.01 = 68,089.65 : x
  2. Step 2: Convert to fraction form
    121,802.37/168,091.01 = 68,089.65/x
  3. Step 3: Cross multiply
    121,802.37x = 168,091.01 × 68,089.65
  4. Step 4: Simplify right side
    121,802.37x = 11,445,257,698.60
  5. Step 5: Solve for x
    x = 11,445,257,698.60/121,802.37
  6. Step 6: Final answer
    x = 93,965.80

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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.