Finding the Fourth Proportional to 97,668.13, 134,778.18 and 55,225.75
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Solution
The fourth proportional to 97,668.13, 134,778.18 and 55,225.75 is: 76,209.36
Step by Step Solution
- Step 1: Write the proportion equation
97,668.13 : 134,778.18 = 55,225.75 : x - Step 2: Convert to fraction form
97,668.13/134,778.18 = 55,225.75/x - Step 3: Cross multiply
97,668.13x = 134,778.18 × 55,225.75 - Step 4: Simplify right side
97,668.13x = 7,443,226,074.14 - Step 5: Solve for x
x = 7,443,226,074.14/97,668.13 - Step 6: Final answer
x = 76,209.36
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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.