Finding the Fourth Proportional to 136,587.06, 188,480.52 and 76,155.12
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Solution
The fourth proportional to 136,587.06, 188,480.52 and 76,155.12 is: 105,088.70
Step by Step Solution
- Step 1: Write the proportion equation
136,587.06 : 188,480.52 = 76,155.12 : x - Step 2: Convert to fraction form
136,587.06/188,480.52 = 76,155.12/x - Step 3: Cross multiply
136,587.06x = 188,480.52 × 76,155.12 - Step 4: Simplify right side
136,587.06x = 14,353,756,618.26 - Step 5: Solve for x
x = 14,353,756,618.26/136,587.06 - Step 6: Final answer
x = 105,088.70
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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.