Home / 268,526.60-402,789.87-127,858.76

Finding the Fourth Proportional to 268,526.60, 402,789.87 and 127,858.76

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Solution

The fourth proportional to 268,526.60, 402,789.87 and 127,858.76 is: 191,788.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,526.60 : 402,789.87 = 127,858.76 : x
  2. Step 2: Convert to fraction form
    268,526.60/402,789.87 = 127,858.76/x
  3. Step 3: Cross multiply
    268,526.60x = 402,789.87 × 127,858.76
  4. Step 4: Simplify right side
    268,526.60x = 51,500,211,304.81
  5. Step 5: Solve for x
    x = 51,500,211,304.81/268,526.60
  6. Step 6: Final answer
    x = 191,788.12

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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.