Finding the Fourth Proportional to 133,330.14, 183,995.70 and 72,900.90
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Solution
The fourth proportional to 133,330.14, 183,995.70 and 72,900.90 is: 100,603.30
Step by Step Solution
- Step 1: Write the proportion equation
133,330.14 : 183,995.70 = 72,900.90 : x - Step 2: Convert to fraction form
133,330.14/183,995.70 = 72,900.90/x - Step 3: Cross multiply
133,330.14x = 183,995.70 × 72,900.90 - Step 4: Simplify right side
133,330.14x = 13,413,452,126.13 - Step 5: Solve for x
x = 13,413,452,126.13/133,330.14 - Step 6: Final answer
x = 100,603.30
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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.