Finding the Fourth Proportional to 118,398.80, 163,437.09 and 73,095.09
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Solution
The fourth proportional to 118,398.80, 163,437.09 and 73,095.09 is: 100,900.09
Step by Step Solution
- Step 1: Write the proportion equation
118,398.80 : 163,437.09 = 73,095.09 : x - Step 2: Convert to fraction form
118,398.80/163,437.09 = 73,095.09/x - Step 3: Cross multiply
118,398.80x = 163,437.09 × 73,095.09 - Step 4: Simplify right side
118,398.80x = 11,946,448,802.89 - Step 5: Solve for x
x = 11,946,448,802.89/118,398.80 - Step 6: Final answer
x = 100,900.09
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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.