Finding the Fourth Proportional to 134,090.19, 201,218.34 and 77,956.71
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Solution
The fourth proportional to 134,090.19, 201,218.34 and 77,956.71 is: 116,983.35
Step by Step Solution
- Step 1: Write the proportion equation
134,090.19 : 201,218.34 = 77,956.71 : x - Step 2: Convert to fraction form
134,090.19/201,218.34 = 77,956.71/x - Step 3: Cross multiply
134,090.19x = 201,218.34 × 77,956.71 - Step 4: Simplify right side
134,090.19x = 15,686,319,778.06 - Step 5: Solve for x
x = 15,686,319,778.06/134,090.19 - Step 6: Final answer
x = 116,983.35
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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.