Finding the Fourth Proportional to 158,615.68, 237,893.12 and 79,708.80
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Solution
The fourth proportional to 158,615.68, 237,893.12 and 79,708.80 is: 119,547.92
Step by Step Solution
- Step 1: Write the proportion equation
158,615.68 : 237,893.12 = 79,708.80 : x - Step 2: Convert to fraction form
158,615.68/237,893.12 = 79,708.80/x - Step 3: Cross multiply
158,615.68x = 237,893.12 × 79,708.80 - Step 4: Simplify right side
158,615.68x = 18,962,175,123.46 - Step 5: Solve for x
x = 18,962,175,123.46/158,615.68 - Step 6: Final answer
x = 119,547.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.