Finding the Fourth Proportional to 98,112.95, 147,155.60 and 31,544.62
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Solution
The fourth proportional to 98,112.95, 147,155.60 and 31,544.62 is: 47,312.49
Step by Step Solution
- Step 1: Write the proportion equation
98,112.95 : 147,155.60 = 31,544.62 : x - Step 2: Convert to fraction form
98,112.95/147,155.60 = 31,544.62/x - Step 3: Cross multiply
98,112.95x = 147,155.60 × 31,544.62 - Step 4: Simplify right side
98,112.95x = 4,641,967,482.87 - Step 5: Solve for x
x = 4,641,967,482.87/98,112.95 - Step 6: Final answer
x = 47,312.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.