Finding the Fourth Proportional to 130,511.62, 180,106.04 and 73,922.99
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Solution
The fourth proportional to 130,511.62, 180,106.04 and 73,922.99 is: 102,013.73
Step by Step Solution
- Step 1: Write the proportion equation
130,511.62 : 180,106.04 = 73,922.99 : x - Step 2: Convert to fraction form
130,511.62/180,106.04 = 73,922.99/x - Step 3: Cross multiply
130,511.62x = 180,106.04 × 73,922.99 - Step 4: Simplify right side
130,511.62x = 13,313,976,993.86 - Step 5: Solve for x
x = 13,313,976,993.86/130,511.62 - Step 6: Final answer
x = 102,013.73
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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.