Finding the Fourth Proportional to 101,720.99, 140,368.08 and 58,702.26
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Solution
The fourth proportional to 101,720.99, 140,368.08 and 58,702.26 is: 81,005.15
Step by Step Solution
- Step 1: Write the proportion equation
101,720.99 : 140,368.08 = 58,702.26 : x - Step 2: Convert to fraction form
101,720.99/140,368.08 = 58,702.26/x - Step 3: Cross multiply
101,720.99x = 140,368.08 × 58,702.26 - Step 4: Simplify right side
101,720.99x = 8,239,923,527.86 - Step 5: Solve for x
x = 8,239,923,527.86/101,720.99 - Step 6: Final answer
x = 81,005.15
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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.