Home / 121,859.01-168,181.07-68,147.01

Finding the Fourth Proportional to 121,859.01, 168,181.07 and 68,147.01

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Solution

The fourth proportional to 121,859.01, 168,181.07 and 68,147.01 is: 94,051.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,859.01 : 168,181.07 = 68,147.01 : x
  2. Step 2: Convert to fraction form
    121,859.01/168,181.07 = 68,147.01/x
  3. Step 3: Cross multiply
    121,859.01x = 168,181.07 × 68,147.01
  4. Step 4: Simplify right side
    121,859.01x = 11,461,036,718.37
  5. Step 5: Solve for x
    x = 11,461,036,718.37/121,859.01
  6. Step 6: Final answer
    x = 94,051.62

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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.