Finding the Fourth Proportional to 99,071.26, 136,718.34 and 56,630.71
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Solution
The fourth proportional to 99,071.26, 136,718.34 and 56,630.71 is: 78,150.38
Step by Step Solution
- Step 1: Write the proportion equation
99,071.26 : 136,718.34 = 56,630.71 : x - Step 2: Convert to fraction form
99,071.26/136,718.34 = 56,630.71/x - Step 3: Cross multiply
99,071.26x = 136,718.34 × 56,630.71 - Step 4: Simplify right side
99,071.26x = 7,742,456,664.22 - Step 5: Solve for x
x = 7,742,456,664.22/99,071.26 - Step 6: Final answer
x = 78,150.38
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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.