Finding the Fourth Proportional to 149,998.93, 207,050.61 and 86,362.09
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Solution
The fourth proportional to 149,998.93, 207,050.61 and 86,362.09 is: 119,209.67
Step by Step Solution
- Step 1: Write the proportion equation
149,998.93 : 207,050.61 = 86,362.09 : x - Step 2: Convert to fraction form
149,998.93/207,050.61 = 86,362.09/x - Step 3: Cross multiply
149,998.93x = 207,050.61 × 86,362.09 - Step 4: Simplify right side
149,998.93x = 17,881,323,415.37 - Step 5: Solve for x
x = 17,881,323,415.37/149,998.93 - Step 6: Final answer
x = 119,209.67
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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.