Finding the Fourth Proportional to 84,206.95, 125,693.88 and 74,242.69
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Solution
The fourth proportional to 84,206.95, 125,693.88 and 74,242.69 is: 110,820.45
Step by Step Solution
- Step 1: Write the proportion equation
84,206.95 : 125,693.88 = 74,242.69 : x - Step 2: Convert to fraction form
84,206.95/125,693.88 = 74,242.69/x - Step 3: Cross multiply
84,206.95x = 125,693.88 × 74,242.69 - Step 4: Simplify right side
84,206.95x = 9,331,851,767.74 - Step 5: Solve for x
x = 9,331,851,767.74/84,206.95 - Step 6: Final answer
x = 110,820.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.