Finding the Fourth Proportional to 150,659.08, 207,909.51 and 86,129.71
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Solution
The fourth proportional to 150,659.08, 207,909.51 and 86,129.71 is: 118,858.99
Step by Step Solution
- Step 1: Write the proportion equation
150,659.08 : 207,909.51 = 86,129.71 : x - Step 2: Convert to fraction form
150,659.08/207,909.51 = 86,129.71/x - Step 3: Cross multiply
150,659.08x = 207,909.51 × 86,129.71 - Step 4: Simplify right side
150,659.08x = 17,907,185,802.54 - Step 5: Solve for x
x = 17,907,185,802.54/150,659.08 - Step 6: Final answer
x = 118,858.99
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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.