Finding the Fourth Proportional to 147,221.99, 220,853.64 and 72,345.08
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Solution
The fourth proportional to 147,221.99, 220,853.64 and 72,345.08 is: 108,527.77
Step by Step Solution
- Step 1: Write the proportion equation
147,221.99 : 220,853.64 = 72,345.08 : x - Step 2: Convert to fraction form
147,221.99/220,853.64 = 72,345.08/x - Step 3: Cross multiply
147,221.99x = 220,853.64 × 72,345.08 - Step 4: Simplify right side
147,221.99x = 15,977,674,670.58 - Step 5: Solve for x
x = 15,977,674,670.58/147,221.99 - Step 6: Final answer
x = 108,527.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.