Finding the Fourth Proportional to 121,701.68, 168,807.54 and 118,464.92
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Solution
The fourth proportional to 121,701.68, 168,807.54 and 118,464.92 is: 164,317.95
Step by Step Solution
- Step 1: Write the proportion equation
121,701.68 : 168,807.54 = 118,464.92 : x - Step 2: Convert to fraction form
121,701.68/168,807.54 = 118,464.92/x - Step 3: Cross multiply
121,701.68x = 168,807.54 × 118,464.92 - Step 4: Simplify right side
121,701.68x = 19,997,771,129.17 - Step 5: Solve for x
x = 19,997,771,129.17/121,701.68 - Step 6: Final answer
x = 164,317.95
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.