Finding the Fourth Proportional to 150,071.08, 207,150.18 and 86,434.12
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Solution
The fourth proportional to 150,071.08, 207,150.18 and 86,434.12 is: 119,309.09
Step by Step Solution
- Step 1: Write the proportion equation
150,071.08 : 207,150.18 = 86,434.12 : x - Step 2: Convert to fraction form
150,071.08/207,150.18 = 86,434.12/x - Step 3: Cross multiply
150,071.08x = 207,150.18 × 86,434.12 - Step 4: Simplify right side
150,071.08x = 17,904,843,516.14 - Step 5: Solve for x
x = 17,904,843,516.14/150,071.08 - Step 6: Final answer
x = 119,309.09
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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.