Finding the Fourth Proportional to 107,108.88, 147,840.84 and 64,670.28
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Solution
The fourth proportional to 107,108.88, 147,840.84 and 64,670.28 is: 89,263.45
Step by Step Solution
- Step 1: Write the proportion equation
107,108.88 : 147,840.84 = 64,670.28 : x - Step 2: Convert to fraction form
107,108.88/147,840.84 = 64,670.28/x - Step 3: Cross multiply
107,108.88x = 147,840.84 × 64,670.28 - Step 4: Simplify right side
107,108.88x = 9,560,908,518.24 - Step 5: Solve for x
x = 9,560,908,518.24/107,108.88 - Step 6: Final answer
x = 89,263.45
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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.