Finding the Fourth Proportional to 102,430.05, 141,303.22 and 68,446.88
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Solution
The fourth proportional to 102,430.05, 141,303.22 and 68,446.88 is: 94,423.12
Step by Step Solution
- Step 1: Write the proportion equation
102,430.05 : 141,303.22 = 68,446.88 : x - Step 2: Convert to fraction form
102,430.05/141,303.22 = 68,446.88/x - Step 3: Cross multiply
102,430.05x = 141,303.22 × 68,446.88 - Step 4: Simplify right side
102,430.05x = 9,671,764,580.22 - Step 5: Solve for x
x = 9,671,764,580.22/102,430.05 - Step 6: Final answer
x = 94,423.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.