Home / 151,775.26-209,440.75-83,790.54

Finding the Fourth Proportional to 151,775.26, 209,440.75 and 83,790.54

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Solution

The fourth proportional to 151,775.26, 209,440.75 and 83,790.54 is: 115,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,775.26 : 209,440.75 = 83,790.54 : x
  2. Step 2: Convert to fraction form
    151,775.26/209,440.75 = 83,790.54/x
  3. Step 3: Cross multiply
    151,775.26x = 209,440.75 × 83,790.54
  4. Step 4: Simplify right side
    151,775.26x = 17,549,153,540.51
  5. Step 5: Solve for x
    x = 17,549,153,540.51/151,775.26
  6. Step 6: Final answer
    x = 115,625.92

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1.5x scale

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.