Finding the Fourth Proportional to 98,322.13, 147,492.78 and 39,143.98
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Solution
The fourth proportional to 98,322.13, 147,492.78 and 39,143.98 is: 58,719.79
Step by Step Solution
- Step 1: Write the proportion equation
98,322.13 : 147,492.78 = 39,143.98 : x - Step 2: Convert to fraction form
98,322.13/147,492.78 = 39,143.98/x - Step 3: Cross multiply
98,322.13x = 147,492.78 × 39,143.98 - Step 4: Simplify right side
98,322.13x = 5,773,454,430.46 - Step 5: Solve for x
x = 5,773,454,430.46/98,322.13 - Step 6: Final answer
x = 58,719.79
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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.