Home / 105,281.22-145,313.96-88,258.50

Finding the Fourth Proportional to 105,281.22, 145,313.96 and 88,258.50

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Solution

The fourth proportional to 105,281.22, 145,313.96 and 88,258.50 is: 121,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,281.22 : 145,313.96 = 88,258.50 : x
  2. Step 2: Convert to fraction form
    105,281.22/145,313.96 = 88,258.50/x
  3. Step 3: Cross multiply
    105,281.22x = 145,313.96 × 88,258.50
  4. Step 4: Simplify right side
    105,281.22x = 12,825,192,138.66
  5. Step 5: Solve for x
    x = 12,825,192,138.66/105,281.22
  6. Step 6: Final answer
    x = 121,818.42

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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.