Finding the Fourth Proportional to 135,043.60, 202,403.40 and 56,117.20
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Solution
The fourth proportional to 135,043.60, 202,403.40 and 56,117.20 is: 84,108.48
Step by Step Solution
- Step 1: Write the proportion equation
135,043.60 : 202,403.40 = 56,117.20 : x - Step 2: Convert to fraction form
135,043.60/202,403.40 = 56,117.20/x - Step 3: Cross multiply
135,043.60x = 202,403.40 × 56,117.20 - Step 4: Simplify right side
135,043.60x = 11,358,312,078.48 - Step 5: Solve for x
x = 11,358,312,078.48/135,043.60 - Step 6: Final answer
x = 84,108.48
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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.