Finding the Fourth Proportional to 143,283.80, 214,925.70 and 125,787.80
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Solution
The fourth proportional to 143,283.80, 214,925.70 and 125,787.80 is: 188,681.70
Step by Step Solution
- Step 1: Write the proportion equation
143,283.80 : 214,925.70 = 125,787.80 : x - Step 2: Convert to fraction form
143,283.80/214,925.70 = 125,787.80/x - Step 3: Cross multiply
143,283.80x = 214,925.70 × 125,787.80 - Step 4: Simplify right side
143,283.80x = 27,035,030,966.46 - Step 5: Solve for x
x = 27,035,030,966.46/143,283.80 - Step 6: Final answer
x = 188,681.70
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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.