Finding the Fourth Proportional to 154,781.70, 213,508.23 and 97,330.08
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Solution
The fourth proportional to 154,781.70, 213,508.23 and 97,330.08 is: 134,258.59
Step by Step Solution
- Step 1: Write the proportion equation
154,781.70 : 213,508.23 = 97,330.08 : x - Step 2: Convert to fraction form
154,781.70/213,508.23 = 97,330.08/x - Step 3: Cross multiply
154,781.70x = 213,508.23 × 97,330.08 - Step 4: Simplify right side
154,781.70x = 20,780,773,106.56 - Step 5: Solve for x
x = 20,780,773,106.56/154,781.70 - Step 6: Final answer
x = 134,258.59
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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.