Finding the Fourth Proportional to 139,730.18, 192,854.22 and 79,306.48
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Solution
The fourth proportional to 139,730.18, 192,854.22 and 79,306.48 is: 109,458.02
Step by Step Solution
- Step 1: Write the proportion equation
139,730.18 : 192,854.22 = 79,306.48 : x - Step 2: Convert to fraction form
139,730.18/192,854.22 = 79,306.48/x - Step 3: Cross multiply
139,730.18x = 192,854.22 × 79,306.48 - Step 4: Simplify right side
139,730.18x = 15,294,589,341.35 - Step 5: Solve for x
x = 15,294,589,341.35/139,730.18 - Step 6: Final answer
x = 109,458.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.