Home / 151,683.88-209,326.02-83,699.80

Finding the Fourth Proportional to 151,683.88, 209,326.02 and 83,699.80

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Solution

The fourth proportional to 151,683.88, 209,326.02 and 83,699.80 is: 115,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,683.88 : 209,326.02 = 83,699.80 : x
  2. Step 2: Convert to fraction form
    151,683.88/209,326.02 = 83,699.80/x
  3. Step 3: Cross multiply
    151,683.88x = 209,326.02 × 83,699.80
  4. Step 4: Simplify right side
    151,683.88x = 17,520,546,008.80
  5. Step 5: Solve for x
    x = 17,520,546,008.80/151,683.88
  6. Step 6: Final answer
    x = 115,506.97

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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.