Finding the Fourth Proportional to 98,807.23, 136,432.58 and 91,250.79
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Solution
The fourth proportional to 98,807.23, 136,432.58 and 91,250.79 is: 125,998.68
Step by Step Solution
- Step 1: Write the proportion equation
98,807.23 : 136,432.58 = 91,250.79 : x - Step 2: Convert to fraction form
98,807.23/136,432.58 = 91,250.79/x - Step 3: Cross multiply
98,807.23x = 136,432.58 × 91,250.79 - Step 4: Simplify right side
98,807.23x = 12,449,580,706.74 - Step 5: Solve for x
x = 12,449,580,706.74/98,807.23 - Step 6: Final answer
x = 125,998.68
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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.