Finding the Fourth Proportional to 122,925.60, 169,624.80 and 69,202.08
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Solution
The fourth proportional to 122,925.60, 169,624.80 and 69,202.08 is: 95,491.82
Step by Step Solution
- Step 1: Write the proportion equation
122,925.60 : 169,624.80 = 69,202.08 : x - Step 2: Convert to fraction form
122,925.60/169,624.80 = 69,202.08/x - Step 3: Cross multiply
122,925.60x = 169,624.80 × 69,202.08 - Step 4: Simplify right side
122,925.60x = 11,738,388,979.58 - Step 5: Solve for x
x = 11,738,388,979.58/122,925.60 - Step 6: Final answer
x = 95,491.82
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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.