Finding the Fourth Proportional to 142,959.23, 197,283.93 and 79,297.02
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Solution
The fourth proportional to 142,959.23, 197,283.93 and 79,297.02 is: 109,430.00
Step by Step Solution
- Step 1: Write the proportion equation
142,959.23 : 197,283.93 = 79,297.02 : x - Step 2: Convert to fraction form
142,959.23/197,283.93 = 79,297.02/x - Step 3: Cross multiply
142,959.23x = 197,283.93 × 79,297.02 - Step 4: Simplify right side
142,959.23x = 15,644,027,346.40 - Step 5: Solve for x
x = 15,644,027,346.40/142,959.23 - Step 6: Final answer
x = 109,430.00
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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.