Finding the Fourth Proportional to 97,115.20, 134,022.08 and 56,833.12
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Solution
The fourth proportional to 97,115.20, 134,022.08 and 56,833.12 is: 78,431.52
Step by Step Solution
- Step 1: Write the proportion equation
97,115.20 : 134,022.08 = 56,833.12 : x - Step 2: Convert to fraction form
97,115.20/134,022.08 = 56,833.12/x - Step 3: Cross multiply
97,115.20x = 134,022.08 × 56,833.12 - Step 4: Simplify right side
97,115.20x = 7,616,892,955.29 - Step 5: Solve for x
x = 7,616,892,955.29/97,115.20 - Step 6: Final answer
x = 78,431.52
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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.