Finding the Fourth Proportional to 149,984.54, 207,030.78 and 86,347.70
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Solution
The fourth proportional to 149,984.54, 207,030.78 and 86,347.70 is: 119,189.83
Step by Step Solution
- Step 1: Write the proportion equation
149,984.54 : 207,030.78 = 86,347.70 : x - Step 2: Convert to fraction form
149,984.54/207,030.78 = 86,347.70/x - Step 3: Cross multiply
149,984.54x = 207,030.78 × 86,347.70 - Step 4: Simplify right side
149,984.54x = 17,876,630,647.05 - Step 5: Solve for x
x = 17,876,630,647.05/149,984.54 - Step 6: Final answer
x = 119,189.83
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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.