Home / 119,586.78-165,041.37-89,319.60

Finding the Fourth Proportional to 119,586.78, 165,041.37 and 89,319.60

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Solution

The fourth proportional to 119,586.78, 165,041.37 and 89,319.60 is: 123,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,586.78 : 165,041.37 = 89,319.60 : x
  2. Step 2: Convert to fraction form
    119,586.78/165,041.37 = 89,319.60/x
  3. Step 3: Cross multiply
    119,586.78x = 165,041.37 × 89,319.60
  4. Step 4: Simplify right side
    119,586.78x = 14,741,429,151.85
  5. Step 5: Solve for x
    x = 14,741,429,151.85/119,586.78
  6. Step 6: Final answer
    x = 123,269.72

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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.