Finding the Fourth Proportional to 93,136.12, 139,645.74 and 67,844.68
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Solution
The fourth proportional to 93,136.12, 139,645.74 and 67,844.68 is: 101,724.45
Step by Step Solution
- Step 1: Write the proportion equation
93,136.12 : 139,645.74 = 67,844.68 : x - Step 2: Convert to fraction form
93,136.12/139,645.74 = 67,844.68/x - Step 3: Cross multiply
93,136.12x = 139,645.74 × 67,844.68 - Step 4: Simplify right side
93,136.12x = 9,474,220,543.66 - Step 5: Solve for x
x = 9,474,220,543.66/93,136.12 - Step 6: Final answer
x = 101,724.45
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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.