Finding the Fourth Proportional to 130,509.36, 180,097.68 and 73,917.36
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Solution
The fourth proportional to 130,509.36, 180,097.68 and 73,917.36 is: 102,002.99
Step by Step Solution
- Step 1: Write the proportion equation
130,509.36 : 180,097.68 = 73,917.36 : x - Step 2: Convert to fraction form
130,509.36/180,097.68 = 73,917.36/x - Step 3: Cross multiply
130,509.36x = 180,097.68 × 73,917.36 - Step 4: Simplify right side
130,509.36x = 13,312,345,047.72 - Step 5: Solve for x
x = 13,312,345,047.72/130,509.36 - Step 6: Final answer
x = 102,002.99
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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.