Finding the Fourth Proportional to 106,809.80, 160,309.74 and 56,931.08
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Solution
The fourth proportional to 106,809.80, 160,309.74 and 56,931.08 is: 85,447.28
Step by Step Solution
- Step 1: Write the proportion equation
106,809.80 : 160,309.74 = 56,931.08 : x - Step 2: Convert to fraction form
106,809.80/160,309.74 = 56,931.08/x - Step 3: Cross multiply
106,809.80x = 160,309.74 × 56,931.08 - Step 4: Simplify right side
106,809.80x = 9,126,606,632.72 - Step 5: Solve for x
x = 9,126,606,632.72/106,809.80 - Step 6: Final answer
x = 85,447.28
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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.