Finding the Fourth Proportional to 134,473.80, 201,710.70 and 81,985.80
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Solution
The fourth proportional to 134,473.80, 201,710.70 and 81,985.80 is: 122,978.70
Step by Step Solution
- Step 1: Write the proportion equation
134,473.80 : 201,710.70 = 81,985.80 : x - Step 2: Convert to fraction form
134,473.80/201,710.70 = 81,985.80/x - Step 3: Cross multiply
134,473.80x = 201,710.70 × 81,985.80 - Step 4: Simplify right side
134,473.80x = 16,537,413,108.06 - Step 5: Solve for x
x = 16,537,413,108.06/134,473.80 - Step 6: Final answer
x = 122,978.70
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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.