Finding the Fourth Proportional to 155,007.19, 213,895.99 and 90,482.05
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Solution
The fourth proportional to 155,007.19, 213,895.99 and 90,482.05 is: 124,857.09
Step by Step Solution
- Step 1: Write the proportion equation
155,007.19 : 213,895.99 = 90,482.05 : x - Step 2: Convert to fraction form
155,007.19/213,895.99 = 90,482.05/x - Step 3: Cross multiply
155,007.19x = 213,895.99 × 90,482.05 - Step 4: Simplify right side
155,007.19x = 19,353,747,209.57 - Step 5: Solve for x
x = 19,353,747,209.57/155,007.19 - Step 6: Final answer
x = 124,857.09
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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.