Finding the Fourth Proportional to 93,135.12, 139,644.24 and 67,843.68
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Solution
The fourth proportional to 93,135.12, 139,644.24 and 67,843.68 is: 101,722.95
Step by Step Solution
- Step 1: Write the proportion equation
93,135.12 : 139,644.24 = 67,843.68 : x - Step 2: Convert to fraction form
93,135.12/139,644.24 = 67,843.68/x - Step 3: Cross multiply
93,135.12x = 139,644.24 × 67,843.68 - Step 4: Simplify right side
93,135.12x = 9,473,979,132.40 - Step 5: Solve for x
x = 9,473,979,132.40/93,135.12 - Step 6: Final answer
x = 101,722.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.