Finding the Fourth Proportional to 151,955.84, 209,688.63 and 83,972.19
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Solution
The fourth proportional to 151,955.84, 209,688.63 and 83,972.19 is: 115,875.86
Step by Step Solution
- Step 1: Write the proportion equation
151,955.84 : 209,688.63 = 83,972.19 : x - Step 2: Convert to fraction form
151,955.84/209,688.63 = 83,972.19/x - Step 3: Cross multiply
151,955.84x = 209,688.63 × 83,972.19 - Step 4: Simplify right side
151,955.84x = 17,608,013,479.20 - Step 5: Solve for x
x = 17,608,013,479.20/151,955.84 - Step 6: Final answer
x = 115,875.86
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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.