Finding the Fourth Proportional to 124,854.51, 187,276.80 and 68,805.75
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Solution
The fourth proportional to 124,854.51, 187,276.80 and 68,805.75 is: 103,205.89
Step by Step Solution
- Step 1: Write the proportion equation
124,854.51 : 187,276.80 = 68,805.75 : x - Step 2: Convert to fraction form
124,854.51/187,276.80 = 68,805.75/x - Step 3: Cross multiply
124,854.51x = 187,276.80 × 68,805.75 - Step 4: Simplify right side
124,854.51x = 12,885,720,681.60 - Step 5: Solve for x
x = 12,885,720,681.60/124,854.51 - Step 6: Final answer
x = 103,205.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.