Finding the Fourth Proportional to 145,925.19, 201,376.76 and 78,857.19
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Solution
The fourth proportional to 145,925.19, 201,376.76 and 78,857.19 is: 108,822.92
Step by Step Solution
- Step 1: Write the proportion equation
145,925.19 : 201,376.76 = 78,857.19 : x - Step 2: Convert to fraction form
145,925.19/201,376.76 = 78,857.19/x - Step 3: Cross multiply
145,925.19x = 201,376.76 × 78,857.19 - Step 4: Simplify right side
145,925.19x = 15,880,005,424.90 - Step 5: Solve for x
x = 15,880,005,424.90/145,925.19 - Step 6: Final answer
x = 108,822.92
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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.