Finding the Fourth Proportional to 147,482.21, 203,541.06 and 90,155.09
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Solution
The fourth proportional to 147,482.21, 203,541.06 and 90,155.09 is: 124,423.56
Step by Step Solution
- Step 1: Write the proportion equation
147,482.21 : 203,541.06 = 90,155.09 : x - Step 2: Convert to fraction form
147,482.21/203,541.06 = 90,155.09/x - Step 3: Cross multiply
147,482.21x = 203,541.06 × 90,155.09 - Step 4: Simplify right side
147,482.21x = 18,350,261,565.29 - Step 5: Solve for x
x = 18,350,261,565.29/147,482.21 - Step 6: Final answer
x = 124,423.56
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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.