Home / 151,813.56-209,511.02-83,830.36

Finding the Fourth Proportional to 151,813.56, 209,511.02 and 83,830.36

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Solution

The fourth proportional to 151,813.56, 209,511.02 and 83,830.36 is: 115,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.56 : 209,511.02 = 83,830.36 : x
  2. Step 2: Convert to fraction form
    151,813.56/209,511.02 = 83,830.36/x
  3. Step 3: Cross multiply
    151,813.56x = 209,511.02 × 83,830.36
  4. Step 4: Simplify right side
    151,813.56x = 17,563,384,230.57
  5. Step 5: Solve for x
    x = 17,563,384,230.57/151,813.56
  6. Step 6: Final answer
    x = 115,690.48

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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.