Finding the Fourth Proportional to 125,134.99, 172,547.91 and 79,741.07
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Solution
The fourth proportional to 125,134.99, 172,547.91 and 79,741.07 is: 109,954.50
Step by Step Solution
- Step 1: Write the proportion equation
125,134.99 : 172,547.91 = 79,741.07 : x - Step 2: Convert to fraction form
125,134.99/172,547.91 = 79,741.07/x - Step 3: Cross multiply
125,134.99x = 172,547.91 × 79,741.07 - Step 4: Simplify right side
125,134.99x = 13,759,154,753.98 - Step 5: Solve for x
x = 13,759,154,753.98/125,134.99 - Step 6: Final answer
x = 109,954.50
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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.