Finding the Fourth Proportional to 107,719.61, 148,655.67 and 59,976.19
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Solution
The fourth proportional to 107,719.61, 148,655.67 and 59,976.19 is: 82,768.59
Step by Step Solution
- Step 1: Write the proportion equation
107,719.61 : 148,655.67 = 59,976.19 : x - Step 2: Convert to fraction form
107,719.61/148,655.67 = 59,976.19/x - Step 3: Cross multiply
107,719.61x = 148,655.67 × 59,976.19 - Step 4: Simplify right side
107,719.61x = 8,915,799,965.22 - Step 5: Solve for x
x = 8,915,799,965.22/107,719.61 - Step 6: Final answer
x = 82,768.59
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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.