Home / 111,837.10-154,284.34-66,489.35

Finding the Fourth Proportional to 111,837.10, 154,284.34 and 66,489.35

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Solution

The fourth proportional to 111,837.10, 154,284.34 and 66,489.35 is: 91,725.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,837.10 : 154,284.34 = 66,489.35 : x
  2. Step 2: Convert to fraction form
    111,837.10/154,284.34 = 66,489.35/x
  3. Step 3: Cross multiply
    111,837.10x = 154,284.34 × 66,489.35
  4. Step 4: Simplify right side
    111,837.10x = 10,258,264,377.91
  5. Step 5: Solve for x
    x = 10,258,264,377.91/111,837.10
  6. Step 6: Final answer
    x = 91,725.06

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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.