Home / 119,819.78-165,498.48-89,739.50

Finding the Fourth Proportional to 119,819.78, 165,498.48 and 89,739.50

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Solution

The fourth proportional to 119,819.78, 165,498.48 and 89,739.50 is: 123,950.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,819.78 : 165,498.48 = 89,739.50 : x
  2. Step 2: Convert to fraction form
    119,819.78/165,498.48 = 89,739.50/x
  3. Step 3: Cross multiply
    119,819.78x = 165,498.48 × 89,739.50
  4. Step 4: Simplify right side
    119,819.78x = 14,851,750,845.96
  5. Step 5: Solve for x
    x = 14,851,750,845.96/119,819.78
  6. Step 6: Final answer
    x = 123,950.74

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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.