Home / 151,813.80-209,497.68-83,829.60

Finding the Fourth Proportional to 151,813.80, 209,497.68 and 83,829.60

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Solution

The fourth proportional to 151,813.80, 209,497.68 and 83,829.60 is: 115,681.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.80 : 209,497.68 = 83,829.60 : x
  2. Step 2: Convert to fraction form
    151,813.80/209,497.68 = 83,829.60/x
  3. Step 3: Cross multiply
    151,813.80x = 209,497.68 × 83,829.60
  4. Step 4: Simplify right side
    151,813.80x = 17,562,106,715.33
  5. Step 5: Solve for x
    x = 17,562,106,715.33/151,813.80
  6. Step 6: Final answer
    x = 115,681.89

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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.