Home / 130,788.77-196,269.30-71,665.95

Finding the Fourth Proportional to 130,788.77, 196,269.30 and 71,665.95

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Solution

The fourth proportional to 130,788.77, 196,269.30 and 71,665.95 is: 107,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,788.77 : 196,269.30 = 71,665.95 : x
  2. Step 2: Convert to fraction form
    130,788.77/196,269.30 = 71,665.95/x
  3. Step 3: Cross multiply
    130,788.77x = 196,269.30 × 71,665.95
  4. Step 4: Simplify right side
    130,788.77x = 14,065,825,840.34
  5. Step 5: Solve for x
    x = 14,065,825,840.34/130,788.77
  6. Step 6: Final answer
    x = 107,546.13

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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.