Finding the Fourth Proportional to 145,909.28, 201,326.80 and 88,532.88
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Solution
The fourth proportional to 145,909.28, 201,326.80 and 88,532.88 is: 122,158.38
Step by Step Solution
- Step 1: Write the proportion equation
145,909.28 : 201,326.80 = 88,532.88 : x - Step 2: Convert to fraction form
145,909.28/201,326.80 = 88,532.88/x - Step 3: Cross multiply
145,909.28x = 201,326.80 × 88,532.88 - Step 4: Simplify right side
145,909.28x = 17,824,041,425.18 - Step 5: Solve for x
x = 17,824,041,425.18/145,909.28 - Step 6: Final answer
x = 122,158.38
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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.