Finding the Fourth Proportional to 106,725.24, 147,268.30 and 58,975.74
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Solution
The fourth proportional to 106,725.24, 147,268.30 and 58,975.74 is: 81,379.60
Step by Step Solution
- Step 1: Write the proportion equation
106,725.24 : 147,268.30 = 58,975.74 : x - Step 2: Convert to fraction form
106,725.24/147,268.30 = 58,975.74/x - Step 3: Cross multiply
106,725.24x = 147,268.30 × 58,975.74 - Step 4: Simplify right side
106,725.24x = 8,685,256,971.04 - Step 5: Solve for x
x = 8,685,256,971.04/106,725.24 - Step 6: Final answer
x = 81,379.60
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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.