Finding the Fourth Proportional to 126,095.13, 174,021.68 and 72,390.51
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Solution
The fourth proportional to 126,095.13, 174,021.68 and 72,390.51 is: 99,904.88
Step by Step Solution
- Step 1: Write the proportion equation
126,095.13 : 174,021.68 = 72,390.51 : x - Step 2: Convert to fraction form
126,095.13/174,021.68 = 72,390.51/x - Step 3: Cross multiply
126,095.13x = 174,021.68 × 72,390.51 - Step 4: Simplify right side
126,095.13x = 12,597,518,347.23 - Step 5: Solve for x
x = 12,597,518,347.23/126,095.13 - Step 6: Final answer
x = 99,904.88
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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.