Home / 151,518.12-209,085.60-83,531.56

Finding the Fourth Proportional to 151,518.12, 209,085.60 and 83,531.56

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Solution

The fourth proportional to 151,518.12, 209,085.60 and 83,531.56 is: 115,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,518.12 : 209,085.60 = 83,531.56 : x
  2. Step 2: Convert to fraction form
    151,518.12/209,085.60 = 83,531.56/x
  3. Step 3: Cross multiply
    151,518.12x = 209,085.60 × 83,531.56
  4. Step 4: Simplify right side
    151,518.12x = 17,465,246,341.54
  5. Step 5: Solve for x
    x = 17,465,246,341.54/151,518.12
  6. Step 6: Final answer
    x = 115,268.37

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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.