Home / 169,236.60-253,789.28-90,307.77

Finding the Fourth Proportional to 169,236.60, 253,789.28 and 90,307.77

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Solution

The fourth proportional to 169,236.60, 253,789.28 and 90,307.77 is: 135,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,236.60 : 253,789.28 = 90,307.77 : x
  2. Step 2: Convert to fraction form
    169,236.60/253,789.28 = 90,307.77/x
  3. Step 3: Cross multiply
    169,236.60x = 253,789.28 × 90,307.77
  4. Step 4: Simplify right side
    169,236.60x = 22,919,142,657.76
  5. Step 5: Solve for x
    x = 22,919,142,657.76/169,236.60
  6. Step 6: Final answer
    x = 135,426.64

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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.