Finding the Fourth Proportional to 102,170.60, 153,357.02 and 83,670.12
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Solution
The fourth proportional to 102,170.60, 153,357.02 and 83,670.12 is: 125,587.99
Step by Step Solution
- Step 1: Write the proportion equation
102,170.60 : 153,357.02 = 83,670.12 : x - Step 2: Convert to fraction form
102,170.60/153,357.02 = 83,670.12/x - Step 3: Cross multiply
102,170.60x = 153,357.02 × 83,670.12 - Step 4: Simplify right side
102,170.60x = 12,831,400,266.24 - Step 5: Solve for x
x = 12,831,400,266.24/102,170.60 - Step 6: Final answer
x = 125,587.99
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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.