Finding the Fourth Proportional to 139,228.08, 192,134.94 and 75,565.88
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Solution
The fourth proportional to 139,228.08, 192,134.94 and 75,565.88 is: 104,281.02
Step by Step Solution
- Step 1: Write the proportion equation
139,228.08 : 192,134.94 = 75,565.88 : x - Step 2: Convert to fraction form
139,228.08/192,134.94 = 75,565.88/x - Step 3: Cross multiply
139,228.08x = 192,134.94 × 75,565.88 - Step 4: Simplify right side
139,228.08x = 14,518,845,296.31 - Step 5: Solve for x
x = 14,518,845,296.31/139,228.08 - Step 6: Final answer
x = 104,281.02
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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.