Finding the Fourth Proportional to 99,117.97, 136,720.58 and 58,803.19
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Solution
The fourth proportional to 99,117.97, 136,720.58 and 58,803.19 is: 81,111.49
Step by Step Solution
- Step 1: Write the proportion equation
99,117.97 : 136,720.58 = 58,803.19 : x - Step 2: Convert to fraction form
99,117.97/136,720.58 = 58,803.19/x - Step 3: Cross multiply
99,117.97x = 136,720.58 × 58,803.19 - Step 4: Simplify right side
99,117.97x = 8,039,605,937.60 - Step 5: Solve for x
x = 8,039,605,937.60/99,117.97 - Step 6: Final answer
x = 81,111.49
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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.