Finding the Fourth Proportional to 153,453.21, 211,776.07 and 93,026.40
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Solution
The fourth proportional to 153,453.21, 211,776.07 and 93,026.40 is: 128,382.88
Step by Step Solution
- Step 1: Write the proportion equation
153,453.21 : 211,776.07 = 93,026.40 : x - Step 2: Convert to fraction form
153,453.21/211,776.07 = 93,026.40/x - Step 3: Cross multiply
153,453.21x = 211,776.07 × 93,026.40 - Step 4: Simplify right side
153,453.21x = 19,700,763,874.24 - Step 5: Solve for x
x = 19,700,763,874.24/153,453.21 - Step 6: Final answer
x = 128,382.88
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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.