Finding the Fourth Proportional to 107,210.93, 147,948.88 and 66,364.26
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Solution
The fourth proportional to 107,210.93, 147,948.88 and 66,364.26 is: 91,581.32
Step by Step Solution
- Step 1: Write the proportion equation
107,210.93 : 147,948.88 = 66,364.26 : x - Step 2: Convert to fraction form
107,210.93/147,948.88 = 66,364.26/x - Step 3: Cross multiply
107,210.93x = 147,948.88 × 66,364.26 - Step 4: Simplify right side
107,210.93x = 9,818,518,174.96 - Step 5: Solve for x
x = 9,818,518,174.96/107,210.93 - Step 6: Final answer
x = 91,581.32
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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.