Finding the Fourth Proportional to 149,982.29, 207,027.68 and 86,345.45
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Solution
The fourth proportional to 149,982.29, 207,027.68 and 86,345.45 is: 119,186.72
Step by Step Solution
- Step 1: Write the proportion equation
149,982.29 : 207,027.68 = 86,345.45 : x - Step 2: Convert to fraction form
149,982.29/207,027.68 = 86,345.45/x - Step 3: Cross multiply
149,982.29x = 207,027.68 × 86,345.45 - Step 4: Simplify right side
149,982.29x = 17,875,896,725.19 - Step 5: Solve for x
x = 17,875,896,725.19/149,982.29 - Step 6: Final answer
x = 119,186.72
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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.