Finding the Fourth Proportional to 187,572.64, 258,867.84 and 112,119.52
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Solution
The fourth proportional to 187,572.64, 258,867.84 and 112,119.52 is: 154,735.46
Step by Step Solution
- Step 1: Write the proportion equation
187,572.64 : 258,867.84 = 112,119.52 : x - Step 2: Convert to fraction form
187,572.64/258,867.84 = 112,119.52/x - Step 3: Cross multiply
187,572.64x = 258,867.84 × 112,119.52 - Step 4: Simplify right side
187,572.64x = 29,024,137,964.24 - Step 5: Solve for x
x = 29,024,137,964.24/187,572.64 - Step 6: Final answer
x = 154,735.46
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1.5x scale
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.