Finding the Fourth Proportional to 124,138.12, 171,483.55 and 119,529.53
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Solution
The fourth proportional to 124,138.12, 171,483.55 and 119,529.53 is: 165,117.28
Step by Step Solution
- Step 1: Write the proportion equation
124,138.12 : 171,483.55 = 119,529.53 : x - Step 2: Convert to fraction form
124,138.12/171,483.55 = 119,529.53/x - Step 3: Cross multiply
124,138.12x = 171,483.55 × 119,529.53 - Step 4: Simplify right side
124,138.12x = 20,497,348,134.23 - Step 5: Solve for x
x = 20,497,348,134.23/124,138.12 - Step 6: Final answer
x = 165,117.28
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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.