Finding the Fourth Proportional to 148,936.24, 205,741.20 and 135,483.76
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Solution
The fourth proportional to 148,936.24, 205,741.20 and 135,483.76 is: 187,157.88
Step by Step Solution
- Step 1: Write the proportion equation
148,936.24 : 205,741.20 = 135,483.76 : x - Step 2: Convert to fraction form
148,936.24/205,741.20 = 135,483.76/x - Step 3: Cross multiply
148,936.24x = 205,741.20 × 135,483.76 - Step 4: Simplify right side
148,936.24x = 27,874,591,362.91 - Step 5: Solve for x
x = 27,874,591,362.91/148,936.24 - Step 6: Final answer
x = 187,157.88
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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.