Finding the Fourth Proportional to 145,812.02, 201,220.59 and 78,744.02
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Solution
The fourth proportional to 145,812.02, 201,220.59 and 78,744.02 is: 108,666.74
Step by Step Solution
- Step 1: Write the proportion equation
145,812.02 : 201,220.59 = 78,744.02 : x - Step 2: Convert to fraction form
145,812.02/201,220.59 = 78,744.02/x - Step 3: Cross multiply
145,812.02x = 201,220.59 × 78,744.02 - Step 4: Simplify right side
145,812.02x = 15,844,916,763.55 - Step 5: Solve for x
x = 15,844,916,763.55/145,812.02 - Step 6: Final answer
x = 108,666.74
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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.