Finding the Fourth Proportional to 103,964.15, 143,470.35 and 58,641.99
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Solution
The fourth proportional to 103,964.15, 143,470.35 and 58,641.99 is: 80,925.85
Step by Step Solution
- Step 1: Write the proportion equation
103,964.15 : 143,470.35 = 58,641.99 : x - Step 2: Convert to fraction form
103,964.15/143,470.35 = 58,641.99/x - Step 3: Cross multiply
103,964.15x = 143,470.35 × 58,641.99 - Step 4: Simplify right side
103,964.15x = 8,413,386,291.98 - Step 5: Solve for x
x = 8,413,386,291.98/103,964.15 - Step 6: Final answer
x = 80,925.85
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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.