Finding the Fourth Proportional to 145,802.13, 201,206.93 and 78,734.13
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Solution
The fourth proportional to 145,802.13, 201,206.93 and 78,734.13 is: 108,653.09
Step by Step Solution
- Step 1: Write the proportion equation
145,802.13 : 201,206.93 = 78,734.13 : x - Step 2: Convert to fraction form
145,802.13/201,206.93 = 78,734.13/x - Step 3: Cross multiply
145,802.13x = 201,206.93 × 78,734.13 - Step 4: Simplify right side
145,802.13x = 15,841,852,583.52 - Step 5: Solve for x
x = 15,841,852,583.52/145,802.13 - Step 6: Final answer
x = 108,653.09
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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.