Finding the Fourth Proportional to 151,706.12, 209,356.65 and 83,726.26
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Solution
The fourth proportional to 151,706.12, 209,356.65 and 83,726.26 is: 115,543.46
Step by Step Solution
- Step 1: Write the proportion equation
151,706.12 : 209,356.65 = 83,726.26 : x - Step 2: Convert to fraction form
151,706.12/209,356.65 = 83,726.26/x - Step 3: Cross multiply
151,706.12x = 209,356.65 × 83,726.26 - Step 4: Simplify right side
151,706.12x = 17,528,648,787.24 - Step 5: Solve for x
x = 17,528,648,787.24/151,706.12 - Step 6: Final answer
x = 115,543.46
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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.