Finding the Fourth Proportional to 156,969.40, 235,454.10 and 97,871.80
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Solution
The fourth proportional to 156,969.40, 235,454.10 and 97,871.80 is: 146,807.70
Step by Step Solution
- Step 1: Write the proportion equation
156,969.40 : 235,454.10 = 97,871.80 : x - Step 2: Convert to fraction form
156,969.40/235,454.10 = 97,871.80/x - Step 3: Cross multiply
156,969.40x = 235,454.10 × 97,871.80 - Step 4: Simplify right side
156,969.40x = 23,044,316,584.38 - Step 5: Solve for x
x = 23,044,316,584.38/156,969.40 - Step 6: Final answer
x = 146,807.70
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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.