Finding the Fourth Proportional to 97,990.24, 135,234.40 and 57,166.93
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Solution
The fourth proportional to 97,990.24, 135,234.40 and 57,166.93 is: 78,894.95
Step by Step Solution
- Step 1: Write the proportion equation
97,990.24 : 135,234.40 = 57,166.93 : x - Step 2: Convert to fraction form
97,990.24/135,234.40 = 57,166.93/x - Step 3: Cross multiply
97,990.24x = 135,234.40 × 57,166.93 - Step 4: Simplify right side
97,990.24x = 7,730,934,960.79 - Step 5: Solve for x
x = 7,730,934,960.79/97,990.24 - Step 6: Final answer
x = 78,894.95
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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.