Finding the Fourth Proportional to 105,593.47, 145,602.18 and 67,292.31
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Solution
The fourth proportional to 105,593.47, 145,602.18 and 67,292.31 is: 92,788.95
Step by Step Solution
- Step 1: Write the proportion equation
105,593.47 : 145,602.18 = 67,292.31 : x - Step 2: Convert to fraction form
105,593.47/145,602.18 = 67,292.31/x - Step 3: Cross multiply
105,593.47x = 145,602.18 × 67,292.31 - Step 4: Simplify right side
105,593.47x = 9,797,907,033.24 - Step 5: Solve for x
x = 9,797,907,033.24/105,593.47 - Step 6: Final answer
x = 92,788.95
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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.