Finding the Fourth Proportional to 97,248.20, 145,872.30 and 79,737.80
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Solution
The fourth proportional to 97,248.20, 145,872.30 and 79,737.80 is: 119,606.70
Step by Step Solution
- Step 1: Write the proportion equation
97,248.20 : 145,872.30 = 79,737.80 : x - Step 2: Convert to fraction form
97,248.20/145,872.30 = 79,737.80/x - Step 3: Cross multiply
97,248.20x = 145,872.30 × 79,737.80 - Step 4: Simplify right side
97,248.20x = 11,631,536,282.94 - Step 5: Solve for x
x = 11,631,536,282.94/97,248.20 - Step 6: Final answer
x = 119,606.70
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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.