Finding the Fourth Proportional to 153,682.08, 229,321.16 and 121,730.08
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Solution
The fourth proportional to 153,682.08, 229,321.16 and 121,730.08 is: 181,643.06
Step by Step Solution
- Step 1: Write the proportion equation
153,682.08 : 229,321.16 = 121,730.08 : x - Step 2: Convert to fraction form
153,682.08/229,321.16 = 121,730.08/x - Step 3: Cross multiply
153,682.08x = 229,321.16 × 121,730.08 - Step 4: Simplify right side
153,682.08x = 27,915,283,152.49 - Step 5: Solve for x
x = 27,915,283,152.49/153,682.08 - Step 6: Final answer
x = 181,643.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.