Finding the Fourth Proportional to 150,660.80, 207,860.40 and 86,083.70
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Solution
The fourth proportional to 150,660.80, 207,860.40 and 86,083.70 is: 118,766.07
Step by Step Solution
- Step 1: Write the proportion equation
150,660.80 : 207,860.40 = 86,083.70 : x - Step 2: Convert to fraction form
150,660.80/207,860.40 = 86,083.70/x - Step 3: Cross multiply
150,660.80x = 207,860.40 × 86,083.70 - Step 4: Simplify right side
150,660.80x = 17,893,391,276.18 - Step 5: Solve for x
x = 17,893,391,276.18/150,660.80 - Step 6: Final answer
x = 118,766.07
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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.