Finding the Fourth Proportional to 124,920.61, 172,389.95 and 67,560.00
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Solution
The fourth proportional to 124,920.61, 172,389.95 and 67,560.00 is: 93,232.54
Step by Step Solution
- Step 1: Write the proportion equation
124,920.61 : 172,389.95 = 67,560.00 : x - Step 2: Convert to fraction form
124,920.61/172,389.95 = 67,560.00/x - Step 3: Cross multiply
124,920.61x = 172,389.95 × 67,560.00 - Step 4: Simplify right side
124,920.61x = 11,646,665,260.78 - Step 5: Solve for x
x = 11,646,665,260.78/124,920.61 - Step 6: Final answer
x = 93,232.54
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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.