Finding the Fourth Proportional to 102,430.16, 141,303.38 and 68,446.99
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Solution
The fourth proportional to 102,430.16, 141,303.38 and 68,446.99 is: 94,423.27
Step by Step Solution
- Step 1: Write the proportion equation
102,430.16 : 141,303.38 = 68,446.99 : x - Step 2: Convert to fraction form
102,430.16/141,303.38 = 68,446.99/x - Step 3: Cross multiply
102,430.16x = 141,303.38 × 68,446.99 - Step 4: Simplify right side
102,430.16x = 9,671,790,604.52 - Step 5: Solve for x
x = 9,671,790,604.52/102,430.16 - Step 6: Final answer
x = 94,423.27
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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.