Finding the Fourth Proportional to 98,319.74, 135,691.64 and 60,101.65
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Solution
The fourth proportional to 98,319.74, 135,691.64 and 60,101.65 is: 82,946.64
Step by Step Solution
- Step 1: Write the proportion equation
98,319.74 : 135,691.64 = 60,101.65 : x - Step 2: Convert to fraction form
98,319.74/135,691.64 = 60,101.65/x - Step 3: Cross multiply
98,319.74x = 135,691.64 × 60,101.65 - Step 4: Simplify right side
98,319.74x = 8,155,291,549.69 - Step 5: Solve for x
x = 8,155,291,549.69/98,319.74 - Step 6: Final answer
x = 82,946.64
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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.