Home / 151,918.60-209,646.48-83,940.16

Finding the Fourth Proportional to 151,918.60, 209,646.48 and 83,940.16

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Solution

The fourth proportional to 151,918.60, 209,646.48 and 83,940.16 is: 115,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,918.60 : 209,646.48 = 83,940.16 : x
  2. Step 2: Convert to fraction form
    151,918.60/209,646.48 = 83,940.16/x
  3. Step 3: Cross multiply
    151,918.60x = 209,646.48 × 83,940.16
  4. Step 4: Simplify right side
    151,918.60x = 17,597,759,074.64
  5. Step 5: Solve for x
    x = 17,597,759,074.64/151,918.60
  6. Step 6: Final answer
    x = 115,836.76

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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.