Finding the Fourth Proportional to 145,052.79, 216,586.49 and 129,962.49
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Solution
The fourth proportional to 145,052.79, 216,586.49 and 129,962.49 is: 194,054.31
Step by Step Solution
- Step 1: Write the proportion equation
145,052.79 : 216,586.49 = 129,962.49 : x - Step 2: Convert to fraction form
145,052.79/216,586.49 = 129,962.49/x - Step 3: Cross multiply
145,052.79x = 216,586.49 × 129,962.49 - Step 4: Simplify right side
145,052.79x = 28,148,118,890.95 - Step 5: Solve for x
x = 28,148,118,890.95/145,052.79 - Step 6: Final answer
x = 194,054.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.