Finding the Fourth Proportional to 150,858.08, 208,154.69 and 86,347.05
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Solution
The fourth proportional to 150,858.08, 208,154.69 and 86,347.05 is: 119,142.07
Step by Step Solution
- Step 1: Write the proportion equation
150,858.08 : 208,154.69 = 86,347.05 : x - Step 2: Convert to fraction form
150,858.08/208,154.69 = 86,347.05/x - Step 3: Cross multiply
150,858.08x = 208,154.69 × 86,347.05 - Step 4: Simplify right side
150,858.08x = 17,973,543,425.16 - Step 5: Solve for x
x = 17,973,543,425.16/150,858.08 - Step 6: Final answer
x = 119,142.07
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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.