Finding the Fourth Proportional to 162,178.84, 223,804.68 and 90,560.08
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Solution
The fourth proportional to 162,178.84, 223,804.68 and 90,560.08 is: 124,971.73
Step by Step Solution
- Step 1: Write the proportion equation
162,178.84 : 223,804.68 = 90,560.08 : x - Step 2: Convert to fraction form
162,178.84/223,804.68 = 90,560.08/x - Step 3: Cross multiply
162,178.84x = 223,804.68 × 90,560.08 - Step 4: Simplify right side
162,178.84x = 20,267,769,725.17 - Step 5: Solve for x
x = 20,267,769,725.17/162,178.84 - Step 6: Final answer
x = 124,971.73
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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.