Finding the Fourth Proportional to 103,370.16, 142,639.70 and 58,053.08
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Solution
The fourth proportional to 103,370.16, 142,639.70 and 58,053.08 is: 80,107.00
Step by Step Solution
- Step 1: Write the proportion equation
103,370.16 : 142,639.70 = 58,053.08 : x - Step 2: Convert to fraction form
103,370.16/142,639.70 = 58,053.08/x - Step 3: Cross multiply
103,370.16x = 142,639.70 × 58,053.08 - Step 4: Simplify right side
103,370.16x = 8,280,673,915.28 - Step 5: Solve for x
x = 8,280,673,915.28/103,370.16 - Step 6: Final answer
x = 80,107.00
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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.