Home / 119,111.64-164,376.68-68,129.02

Finding the Fourth Proportional to 119,111.64, 164,376.68 and 68,129.02

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Solution

The fourth proportional to 119,111.64, 164,376.68 and 68,129.02 is: 94,019.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,111.64 : 164,376.68 = 68,129.02 : x
  2. Step 2: Convert to fraction form
    119,111.64/164,376.68 = 68,129.02/x
  3. Step 3: Cross multiply
    119,111.64x = 164,376.68 × 68,129.02
  4. Step 4: Simplify right side
    119,111.64x = 11,198,822,119.25
  5. Step 5: Solve for x
    x = 11,198,822,119.25/119,111.64
  6. Step 6: Final answer
    x = 94,019.54

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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.