Finding the Fourth Proportional to 168,690.62, 232,642.28 and 139,964.80
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Solution
The fourth proportional to 168,690.62, 232,642.28 and 139,964.80 is: 193,026.32
Step by Step Solution
- Step 1: Write the proportion equation
168,690.62 : 232,642.28 = 139,964.80 : x - Step 2: Convert to fraction form
168,690.62/232,642.28 = 139,964.80/x - Step 3: Cross multiply
168,690.62x = 232,642.28 × 139,964.80 - Step 4: Simplify right side
168,690.62x = 32,561,730,191.74 - Step 5: Solve for x
x = 32,561,730,191.74/168,690.62 - Step 6: Final answer
x = 193,026.32
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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.