Finding the Fourth Proportional to 153,656.14, 211,562.96 and 130,640.70
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Solution
The fourth proportional to 153,656.14, 211,562.96 and 130,640.70 is: 179,873.92
Step by Step Solution
- Step 1: Write the proportion equation
153,656.14 : 211,562.96 = 130,640.70 : x - Step 2: Convert to fraction form
153,656.14/211,562.96 = 130,640.70/x - Step 3: Cross multiply
153,656.14x = 211,562.96 × 130,640.70 - Step 4: Simplify right side
153,656.14x = 27,638,732,535.27 - Step 5: Solve for x
x = 27,638,732,535.27/153,656.14 - Step 6: Final answer
x = 179,873.92
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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.