Finding the Fourth Proportional to 130,532.24, 180,143.40 and 73,944.08
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Solution
The fourth proportional to 130,532.24, 180,143.40 and 73,944.08 is: 102,047.88
Step by Step Solution
- Step 1: Write the proportion equation
130,532.24 : 180,143.40 = 73,944.08 : x - Step 2: Convert to fraction form
130,532.24/180,143.40 = 73,944.08/x - Step 3: Cross multiply
130,532.24x = 180,143.40 × 73,944.08 - Step 4: Simplify right side
130,532.24x = 13,320,537,981.07 - Step 5: Solve for x
x = 13,320,537,981.07/130,532.24 - Step 6: Final answer
x = 102,047.88
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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.