Finding the Fourth Proportional to 139,312.36, 208,968.60 and 50,565.68
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Solution
The fourth proportional to 139,312.36, 208,968.60 and 50,565.68 is: 75,848.54
Step by Step Solution
- Step 1: Write the proportion equation
139,312.36 : 208,968.60 = 50,565.68 : x - Step 2: Convert to fraction form
139,312.36/208,968.60 = 50,565.68/x - Step 3: Cross multiply
139,312.36x = 208,968.60 × 50,565.68 - Step 4: Simplify right side
139,312.36x = 10,566,639,357.65 - Step 5: Solve for x
x = 10,566,639,357.65/139,312.36 - Step 6: Final answer
x = 75,848.54
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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.