Finding the Fourth Proportional to 129,006.60, 193,509.90 and 97,513.80
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Solution
The fourth proportional to 129,006.60, 193,509.90 and 97,513.80 is: 146,270.70
Step by Step Solution
- Step 1: Write the proportion equation
129,006.60 : 193,509.90 = 97,513.80 : x - Step 2: Convert to fraction form
129,006.60/193,509.90 = 97,513.80/x - Step 3: Cross multiply
129,006.60x = 193,509.90 × 97,513.80 - Step 4: Simplify right side
129,006.60x = 18,869,885,686.62 - Step 5: Solve for x
x = 18,869,885,686.62/129,006.60 - Step 6: Final answer
x = 146,270.70
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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.