Finding the Fourth Proportional to 109,619.60, 164,101.35 and 97,809.80
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Solution
The fourth proportional to 109,619.60, 164,101.35 and 97,809.80 is: 146,421.99
Step by Step Solution
- Step 1: Write the proportion equation
109,619.60 : 164,101.35 = 97,809.80 : x - Step 2: Convert to fraction form
109,619.60/164,101.35 = 97,809.80/x - Step 3: Cross multiply
109,619.60x = 164,101.35 × 97,809.80 - Step 4: Simplify right side
109,619.60x = 16,050,720,223.23 - Step 5: Solve for x
x = 16,050,720,223.23/109,619.60 - Step 6: Final answer
x = 146,421.99
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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.