Finding the Fourth Proportional to 156,979.40, 235,469.10 and 97,881.80
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Solution
The fourth proportional to 156,979.40, 235,469.10 and 97,881.80 is: 146,822.70
Step by Step Solution
- Step 1: Write the proportion equation
156,979.40 : 235,469.10 = 97,881.80 : x - Step 2: Convert to fraction form
156,979.40/235,469.10 = 97,881.80/x - Step 3: Cross multiply
156,979.40x = 235,469.10 × 97,881.80 - Step 4: Simplify right side
156,979.40x = 23,048,139,352.38 - Step 5: Solve for x
x = 23,048,139,352.38/156,979.40 - Step 6: Final answer
x = 146,822.70
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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.