Finding the Fourth Proportional to 103,043.84, 154,337.40 and 79,175.70
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Solution
The fourth proportional to 103,043.84, 154,337.40 and 79,175.70 is: 118,588.09
Step by Step Solution
- Step 1: Write the proportion equation
103,043.84 : 154,337.40 = 79,175.70 : x - Step 2: Convert to fraction form
103,043.84/154,337.40 = 79,175.70/x - Step 3: Cross multiply
103,043.84x = 154,337.40 × 79,175.70 - Step 4: Simplify right side
103,043.84x = 12,219,771,681.18 - Step 5: Solve for x
x = 12,219,771,681.18/103,043.84 - Step 6: Final answer
x = 118,588.09
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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.