Finding the Fourth Proportional to 134,885.70, 202,328.55 and 72,677.70
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Solution
The fourth proportional to 134,885.70, 202,328.55 and 72,677.70 is: 109,016.55
Step by Step Solution
- Step 1: Write the proportion equation
134,885.70 : 202,328.55 = 72,677.70 : x - Step 2: Convert to fraction form
134,885.70/202,328.55 = 72,677.70/x - Step 3: Cross multiply
134,885.70x = 202,328.55 × 72,677.70 - Step 4: Simplify right side
134,885.70x = 14,704,773,658.34 - Step 5: Solve for x
x = 14,704,773,658.34/134,885.70 - Step 6: Final answer
x = 109,016.55
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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.