Finding the Fourth Proportional to 114,178.19, 157,716.51 and 87,648.53
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Solution
The fourth proportional to 114,178.19, 157,716.51 and 87,648.53 is: 121,070.59
Step by Step Solution
- Step 1: Write the proportion equation
114,178.19 : 157,716.51 = 87,648.53 : x - Step 2: Convert to fraction form
114,178.19/157,716.51 = 87,648.53/x - Step 3: Cross multiply
114,178.19x = 157,716.51 × 87,648.53 - Step 4: Simplify right side
114,178.19x = 13,823,620,652.52 - Step 5: Solve for x
x = 13,823,620,652.52/114,178.19 - Step 6: Final answer
x = 121,070.59
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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.