Finding the Fourth Proportional to 134,643.97, 185,807.76 and 74,214.66
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Solution
The fourth proportional to 134,643.97, 185,807.76 and 74,214.66 is: 102,415.73
Step by Step Solution
- Step 1: Write the proportion equation
134,643.97 : 185,807.76 = 74,214.66 : x - Step 2: Convert to fraction form
134,643.97/185,807.76 = 74,214.66/x - Step 3: Cross multiply
134,643.97x = 185,807.76 × 74,214.66 - Step 4: Simplify right side
134,643.97x = 13,789,660,152.24 - Step 5: Solve for x
x = 13,789,660,152.24/134,643.97 - Step 6: Final answer
x = 102,415.73
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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.