Finding the Fourth Proportional to 110,919.36, 153,084.56 and 63,177.14
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Solution
The fourth proportional to 110,919.36, 153,084.56 and 63,177.14 is: 87,193.48
Step by Step Solution
- Step 1: Write the proportion equation
110,919.36 : 153,084.56 = 63,177.14 : x - Step 2: Convert to fraction form
110,919.36/153,084.56 = 63,177.14/x - Step 3: Cross multiply
110,919.36x = 153,084.56 × 63,177.14 - Step 4: Simplify right side
110,919.36x = 9,671,444,678.96 - Step 5: Solve for x
x = 9,671,444,678.96/110,919.36 - Step 6: Final answer
x = 87,193.48
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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.