Finding the Fourth Proportional to 140,283.18, 193,585.19 and 79,027.94
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Solution
The fourth proportional to 140,283.18, 193,585.19 and 79,027.94 is: 109,055.39
Step by Step Solution
- Step 1: Write the proportion equation
140,283.18 : 193,585.19 = 79,027.94 : x - Step 2: Convert to fraction form
140,283.18/193,585.19 = 79,027.94/x - Step 3: Cross multiply
140,283.18x = 193,585.19 × 79,027.94 - Step 4: Simplify right side
140,283.18x = 15,298,637,417.14 - Step 5: Solve for x
x = 15,298,637,417.14/140,283.18 - Step 6: Final answer
x = 109,055.39
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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.