Finding the Fourth Proportional to 128,603.99, 193,030.25 and 62,090.97
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Solution
The fourth proportional to 128,603.99, 193,030.25 and 62,090.97 is: 93,196.45
Step by Step Solution
- Step 1: Write the proportion equation
128,603.99 : 193,030.25 = 62,090.97 : x - Step 2: Convert to fraction form
128,603.99/193,030.25 = 62,090.97/x - Step 3: Cross multiply
128,603.99x = 193,030.25 × 62,090.97 - Step 4: Simplify right side
128,603.99x = 11,985,435,151.39 - Step 5: Solve for x
x = 11,985,435,151.39/128,603.99 - Step 6: Final answer
x = 93,196.45
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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.