Finding the Fourth Proportional to 134,661.30, 201,991.95 and 128,537.70
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Solution
The fourth proportional to 134,661.30, 201,991.95 and 128,537.70 is: 192,806.55
Step by Step Solution
- Step 1: Write the proportion equation
134,661.30 : 201,991.95 = 128,537.70 : x - Step 2: Convert to fraction form
134,661.30/201,991.95 = 128,537.70/x - Step 3: Cross multiply
134,661.30x = 201,991.95 × 128,537.70 - Step 4: Simplify right side
134,661.30x = 25,963,580,671.52 - Step 5: Solve for x
x = 25,963,580,671.52/134,661.30 - Step 6: Final answer
x = 192,806.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.