Finding the Fourth Proportional to 154,226.08, 212,854.80 and 97,642.72
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Solution
The fourth proportional to 154,226.08, 212,854.80 and 97,642.72 is: 134,761.39
Step by Step Solution
- Step 1: Write the proportion equation
154,226.08 : 212,854.80 = 97,642.72 : x - Step 2: Convert to fraction form
154,226.08/212,854.80 = 97,642.72/x - Step 3: Cross multiply
154,226.08x = 212,854.80 × 97,642.72 - Step 4: Simplify right side
154,226.08x = 20,783,721,637.06 - Step 5: Solve for x
x = 20,783,721,637.06/154,226.08 - Step 6: Final answer
x = 134,761.39
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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.