Home / 151,709.08-209,370.41-83,739.55

Finding the Fourth Proportional to 151,709.08, 209,370.41 and 83,739.55

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Solution

The fourth proportional to 151,709.08, 209,370.41 and 83,739.55 is: 115,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,709.08 : 209,370.41 = 83,739.55 : x
  2. Step 2: Convert to fraction form
    151,709.08/209,370.41 = 83,739.55/x
  3. Step 3: Cross multiply
    151,709.08x = 209,370.41 × 83,739.55
  4. Step 4: Simplify right side
    151,709.08x = 17,532,583,916.72
  5. Step 5: Solve for x
    x = 17,532,583,916.72/151,709.08
  6. Step 6: Final answer
    x = 115,567.14

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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.