Finding the Fourth Proportional to 130,510.62, 180,104.66 and 73,921.99
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Solution
The fourth proportional to 130,510.62, 180,104.66 and 73,921.99 is: 102,012.36
Step by Step Solution
- Step 1: Write the proportion equation
130,510.62 : 180,104.66 = 73,921.99 : x - Step 2: Convert to fraction form
130,510.62/180,104.66 = 73,921.99/x - Step 3: Cross multiply
130,510.62x = 180,104.66 × 73,921.99 - Step 4: Simplify right side
130,510.62x = 13,313,695,592.86 - Step 5: Solve for x
x = 13,313,695,592.86/130,510.62 - Step 6: Final answer
x = 102,012.36
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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.