Finding the Fourth Proportional to 153,143.36, 229,712.16 and 83,466.08
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Solution
The fourth proportional to 153,143.36, 229,712.16 and 83,466.08 is: 125,197.55
Step by Step Solution
- Step 1: Write the proportion equation
153,143.36 : 229,712.16 = 83,466.08 : x - Step 2: Convert to fraction form
153,143.36/229,712.16 = 83,466.08/x - Step 3: Cross multiply
153,143.36x = 229,712.16 × 83,466.08 - Step 4: Simplify right side
153,143.36x = 19,173,173,523.53 - Step 5: Solve for x
x = 19,173,173,523.53/153,143.36 - Step 6: Final answer
x = 125,197.55
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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.