Finding the Fourth Proportional to 167,781.18, 251,671.50 and 115,030.74
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Solution
The fourth proportional to 167,781.18, 251,671.50 and 115,030.74 is: 172,545.92
Step by Step Solution
- Step 1: Write the proportion equation
167,781.18 : 251,671.50 = 115,030.74 : x - Step 2: Convert to fraction form
167,781.18/251,671.50 = 115,030.74/x - Step 3: Cross multiply
167,781.18x = 251,671.50 × 115,030.74 - Step 4: Simplify right side
167,781.18x = 28,949,958,881.91 - Step 5: Solve for x
x = 28,949,958,881.91/167,781.18 - Step 6: Final answer
x = 172,545.92
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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.