Finding the Fourth Proportional to 157,064.80, 235,424.40 and 68,303.20
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Solution
The fourth proportional to 157,064.80, 235,424.40 and 68,303.20 is: 102,379.65
Step by Step Solution
- Step 1: Write the proportion equation
157,064.80 : 235,424.40 = 68,303.20 : x - Step 2: Convert to fraction form
157,064.80/235,424.40 = 68,303.20/x - Step 3: Cross multiply
157,064.80x = 235,424.40 × 68,303.20 - Step 4: Simplify right side
157,064.80x = 16,080,239,878.08 - Step 5: Solve for x
x = 16,080,239,878.08/157,064.80 - Step 6: Final answer
x = 102,379.65
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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.