Finding the Fourth Proportional to 133,140.51, 183,735.15 and 75,777.02
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Solution
The fourth proportional to 133,140.51, 183,735.15 and 75,777.02 is: 104,572.99
Step by Step Solution
- Step 1: Write the proportion equation
133,140.51 : 183,735.15 = 75,777.02 : x - Step 2: Convert to fraction form
133,140.51/183,735.15 = 75,777.02/x - Step 3: Cross multiply
133,140.51x = 183,735.15 × 75,777.02 - Step 4: Simplify right side
133,140.51x = 13,922,901,217.58 - Step 5: Solve for x
x = 13,922,901,217.58/133,140.51 - Step 6: Final answer
x = 104,572.99
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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.