Finding the Fourth Proportional to 187,125.03, 258,346.95 and 121,776.12
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Solution
The fourth proportional to 187,125.03, 258,346.95 and 121,776.12 is: 168,125.50
Step by Step Solution
- Step 1: Write the proportion equation
187,125.03 : 258,346.95 = 121,776.12 : x - Step 2: Convert to fraction form
187,125.03/258,346.95 = 121,776.12/x - Step 3: Cross multiply
187,125.03x = 258,346.95 × 121,776.12 - Step 4: Simplify right side
187,125.03x = 31,460,489,184.83 - Step 5: Solve for x
x = 31,460,489,184.83/187,125.03 - Step 6: Final answer
x = 168,125.50
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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.