Finding the Fourth Proportional to 130,447.78, 195,727.36 and 55,603.14
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Solution
The fourth proportional to 130,447.78, 195,727.36 and 55,603.14 is: 83,428.45
Step by Step Solution
- Step 1: Write the proportion equation
130,447.78 : 195,727.36 = 55,603.14 : x - Step 2: Convert to fraction form
130,447.78/195,727.36 = 55,603.14/x - Step 3: Cross multiply
130,447.78x = 195,727.36 × 55,603.14 - Step 4: Simplify right side
130,447.78x = 10,883,055,799.91 - Step 5: Solve for x
x = 10,883,055,799.91/130,447.78 - Step 6: Final answer
x = 83,428.45
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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.