Finding the Fourth Proportional to 98,388.24, 135,447.36 and 93,869.04
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Solution
The fourth proportional to 98,388.24, 135,447.36 and 93,869.04 is: 129,225.95
Step by Step Solution
- Step 1: Write the proportion equation
98,388.24 : 135,447.36 = 93,869.04 : x - Step 2: Convert to fraction form
98,388.24/135,447.36 = 93,869.04/x - Step 3: Cross multiply
98,388.24x = 135,447.36 × 93,869.04 - Step 4: Simplify right side
98,388.24x = 12,714,313,653.73 - Step 5: Solve for x
x = 12,714,313,653.73/98,388.24 - Step 6: Final answer
x = 129,225.95
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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.