Finding the Fourth Proportional to 153,659.43, 211,567.48 and 130,643.99
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Solution
The fourth proportional to 153,659.43, 211,567.48 and 130,643.99 is: 179,878.45
Step by Step Solution
- Step 1: Write the proportion equation
153,659.43 : 211,567.48 = 130,643.99 : x - Step 2: Convert to fraction form
153,659.43/211,567.48 = 130,643.99/x - Step 3: Cross multiply
153,659.43x = 211,567.48 × 130,643.99 - Step 4: Simplify right side
153,659.43x = 27,640,019,741.45 - Step 5: Solve for x
x = 27,640,019,741.45/153,659.43 - Step 6: Final answer
x = 179,878.45
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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.