Home / 151,689.25-209,331.00-83,706.20

Finding the Fourth Proportional to 151,689.25, 209,331.00 and 83,706.20

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Solution

The fourth proportional to 151,689.25, 209,331.00 and 83,706.20 is: 115,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,689.25 : 209,331.00 = 83,706.20 : x
  2. Step 2: Convert to fraction form
    151,689.25/209,331.00 = 83,706.20/x
  3. Step 3: Cross multiply
    151,689.25x = 209,331.00 × 83,706.20
  4. Step 4: Simplify right side
    151,689.25x = 17,522,302,133.67
  5. Step 5: Solve for x
    x = 17,522,302,133.67/151,689.25
  6. Step 6: Final answer
    x = 115,514.47

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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.