Finding the Fourth Proportional to 147,124.98, 203,055.12 and 83,449.26
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Solution
The fourth proportional to 147,124.98, 203,055.12 and 83,449.26 is: 115,172.82
Step by Step Solution
- Step 1: Write the proportion equation
147,124.98 : 203,055.12 = 83,449.26 : x - Step 2: Convert to fraction form
147,124.98/203,055.12 = 83,449.26/x - Step 3: Cross multiply
147,124.98x = 203,055.12 × 83,449.26 - Step 4: Simplify right side
147,124.98x = 16,944,799,503.21 - Step 5: Solve for x
x = 16,944,799,503.21/147,124.98 - Step 6: Final answer
x = 115,172.82
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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.