Finding the Fourth Proportional to 128,541.53, 177,296.45 and 110,605.70
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Solution
The fourth proportional to 128,541.53, 177,296.45 and 110,605.70 is: 152,557.68
Step by Step Solution
- Step 1: Write the proportion equation
128,541.53 : 177,296.45 = 110,605.70 : x - Step 2: Convert to fraction form
128,541.53/177,296.45 = 110,605.70/x - Step 3: Cross multiply
128,541.53x = 177,296.45 × 110,605.70 - Step 4: Simplify right side
128,541.53x = 19,609,997,849.98 - Step 5: Solve for x
x = 19,609,997,849.98/128,541.53 - Step 6: Final answer
x = 152,557.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.