Finding the Fourth Proportional to 130,946.63, 180,706.34 and 71,330.63
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Solution
The fourth proportional to 130,946.63, 180,706.34 and 71,330.63 is: 98,436.26
Step by Step Solution
- Step 1: Write the proportion equation
130,946.63 : 180,706.34 = 71,330.63 : x - Step 2: Convert to fraction form
130,946.63/180,706.34 = 71,330.63/x - Step 3: Cross multiply
130,946.63x = 180,706.34 × 71,330.63 - Step 4: Simplify right side
130,946.63x = 12,889,896,351.99 - Step 5: Solve for x
x = 12,889,896,351.99/130,946.63 - Step 6: Final answer
x = 98,436.26
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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.