Finding the Fourth Proportional to 134,863.70, 202,295.55 and 72,655.70
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Solution
The fourth proportional to 134,863.70, 202,295.55 and 72,655.70 is: 108,983.55
Step by Step Solution
- Step 1: Write the proportion equation
134,863.70 : 202,295.55 = 72,655.70 : x - Step 2: Convert to fraction form
134,863.70/202,295.55 = 72,655.70/x - Step 3: Cross multiply
134,863.70x = 202,295.55 × 72,655.70 - Step 4: Simplify right side
134,863.70x = 14,697,924,792.14 - Step 5: Solve for x
x = 14,697,924,792.14/134,863.70 - Step 6: Final answer
x = 108,983.55
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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.