Finding the Fourth Proportional to 128,798.48, 193,175.84 and 34,029.70
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Solution
The fourth proportional to 128,798.48, 193,175.84 and 34,029.70 is: 51,038.77
Step by Step Solution
- Step 1: Write the proportion equation
128,798.48 : 193,175.84 = 34,029.70 : x - Step 2: Convert to fraction form
128,798.48/193,175.84 = 34,029.70/x - Step 3: Cross multiply
128,798.48x = 193,175.84 × 34,029.70 - Step 4: Simplify right side
128,798.48x = 6,573,715,484.58 - Step 5: Solve for x
x = 6,573,715,484.58/128,798.48 - Step 6: Final answer
x = 51,038.77
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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.