Finding the Fourth Proportional to 108,656.75, 149,946.86 and 63,366.14
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Solution
The fourth proportional to 108,656.75, 149,946.86 and 63,366.14 is: 87,445.59
Step by Step Solution
- Step 1: Write the proportion equation
108,656.75 : 149,946.86 = 63,366.14 : x - Step 2: Convert to fraction form
108,656.75/149,946.86 = 63,366.14/x - Step 3: Cross multiply
108,656.75x = 149,946.86 × 63,366.14 - Step 4: Simplify right side
108,656.75x = 9,501,553,723.32 - Step 5: Solve for x
x = 9,501,553,723.32/108,656.75 - Step 6: Final answer
x = 87,445.59
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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.