Finding the Fourth Proportional to 153,221.63, 211,445.84 and 86,153.63
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Solution
The fourth proportional to 153,221.63, 211,445.84 and 86,153.63 is: 118,892.00
Step by Step Solution
- Step 1: Write the proportion equation
153,221.63 : 211,445.84 = 86,153.63 : x - Step 2: Convert to fraction form
153,221.63/211,445.84 = 86,153.63/x - Step 3: Cross multiply
153,221.63x = 211,445.84 × 86,153.63 - Step 4: Simplify right side
153,221.63x = 18,216,825,822.55 - Step 5: Solve for x
x = 18,216,825,822.55/153,221.63 - Step 6: Final answer
x = 118,892.00
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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.