Finding the Fourth Proportional to 168,143.04, 232,132.44 and 111,631.68
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Solution
The fourth proportional to 168,143.04, 232,132.44 and 111,631.68 is: 154,114.82
Step by Step Solution
- Step 1: Write the proportion equation
168,143.04 : 232,132.44 = 111,631.68 : x - Step 2: Convert to fraction form
168,143.04/232,132.44 = 111,631.68/x - Step 3: Cross multiply
168,143.04x = 232,132.44 × 111,631.68 - Step 4: Simplify right side
168,143.04x = 25,913,334,259.70 - Step 5: Solve for x
x = 25,913,334,259.70/168,143.04 - Step 6: Final answer
x = 154,114.82
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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.