Finding the Fourth Proportional to 168,438.24, 232,438.68 and 92,985.12
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Solution
The fourth proportional to 168,438.24, 232,438.68 and 92,985.12 is: 128,316.10
Step by Step Solution
- Step 1: Write the proportion equation
168,438.24 : 232,438.68 = 92,985.12 : x - Step 2: Convert to fraction form
168,438.24/232,438.68 = 92,985.12/x - Step 3: Cross multiply
168,438.24x = 232,438.68 × 92,985.12 - Step 4: Simplify right side
168,438.24x = 21,613,338,552.44 - Step 5: Solve for x
x = 21,613,338,552.44/168,438.24 - Step 6: Final answer
x = 128,316.10
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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.