Finding the Fourth Proportional to 133,065.48, 183,630.96 and 72,637.44
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Solution
The fourth proportional to 133,065.48, 183,630.96 and 72,637.44 is: 100,239.99
Step by Step Solution
- Step 1: Write the proportion equation
133,065.48 : 183,630.96 = 72,637.44 : x - Step 2: Convert to fraction form
133,065.48/183,630.96 = 72,637.44/x - Step 3: Cross multiply
133,065.48x = 183,630.96 × 72,637.44 - Step 4: Simplify right side
133,065.48x = 13,338,482,839.14 - Step 5: Solve for x
x = 13,338,482,839.14/133,065.48 - Step 6: Final answer
x = 100,239.99
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1.5x scale
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.