Finding the Fourth Proportional to 150,637.88, 207,898.72 and 86,975.58
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Solution
The fourth proportional to 150,637.88, 207,898.72 and 86,975.58 is: 120,036.95
Step by Step Solution
- Step 1: Write the proportion equation
150,637.88 : 207,898.72 = 86,975.58 : x - Step 2: Convert to fraction form
150,637.88/207,898.72 = 86,975.58/x - Step 3: Cross multiply
150,637.88x = 207,898.72 × 86,975.58 - Step 4: Simplify right side
150,637.88x = 18,082,111,753.26 - Step 5: Solve for x
x = 18,082,111,753.26/150,637.88 - Step 6: Final answer
x = 120,036.95
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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.