Finding the Fourth Proportional to 101,598.24, 140,207.04 and 56,272.80
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Solution
The fourth proportional to 101,598.24, 140,207.04 and 56,272.80 is: 77,657.28
Step by Step Solution
- Step 1: Write the proportion equation
101,598.24 : 140,207.04 = 56,272.80 : x - Step 2: Convert to fraction form
101,598.24/140,207.04 = 56,272.80/x - Step 3: Cross multiply
101,598.24x = 140,207.04 × 56,272.80 - Step 4: Simplify right side
101,598.24x = 7,889,842,720.51 - Step 5: Solve for x
x = 7,889,842,720.51/101,598.24 - Step 6: Final answer
x = 77,657.28
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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.