Home / 102,656.91-154,258.74-55,308.36

Finding the Fourth Proportional to 102,656.91, 154,258.74 and 55,308.36

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Solution

The fourth proportional to 102,656.91, 154,258.74 and 55,308.36 is: 83,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,656.91 : 154,258.74 = 55,308.36 : x
  2. Step 2: Convert to fraction form
    102,656.91/154,258.74 = 55,308.36/x
  3. Step 3: Cross multiply
    102,656.91x = 154,258.74 × 55,308.36
  4. Step 4: Simplify right side
    102,656.91x = 8,531,797,925.07
  5. Step 5: Solve for x
    x = 8,531,797,925.07/102,656.91
  6. Step 6: Final answer
    x = 83,109.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.