Finding the Fourth Proportional to 124,029.60, 186,044.40 and 74,263.20
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Solution
The fourth proportional to 124,029.60, 186,044.40 and 74,263.20 is: 111,394.80
Step by Step Solution
- Step 1: Write the proportion equation
124,029.60 : 186,044.40 = 74,263.20 : x - Step 2: Convert to fraction form
124,029.60/186,044.40 = 74,263.20/x - Step 3: Cross multiply
124,029.60x = 186,044.40 × 74,263.20 - Step 4: Simplify right side
124,029.60x = 13,816,252,486.08 - Step 5: Solve for x
x = 13,816,252,486.08/124,029.60 - Step 6: Final answer
x = 111,394.80
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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.