Finding the Fourth Proportional to 153,656.11, 211,562.91 and 130,640.67
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Solution
The fourth proportional to 153,656.11, 211,562.91 and 130,640.67 is: 179,873.87
Step by Step Solution
- Step 1: Write the proportion equation
153,656.11 : 211,562.91 = 130,640.67 : x - Step 2: Convert to fraction form
153,656.11/211,562.91 = 130,640.67/x - Step 3: Cross multiply
153,656.11x = 211,562.91 × 130,640.67 - Step 4: Simplify right side
153,656.11x = 27,638,719,271.24 - Step 5: Solve for x
x = 27,638,719,271.24/153,656.11 - Step 6: Final answer
x = 179,873.87
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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.