Finding the Fourth Proportional to 187,462.13, 258,697.76 and 102,579.21
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Solution
The fourth proportional to 187,462.13, 258,697.76 and 102,579.21 is: 141,559.32
Step by Step Solution
- Step 1: Write the proportion equation
187,462.13 : 258,697.76 = 102,579.21 : x - Step 2: Convert to fraction form
187,462.13/258,697.76 = 102,579.21/x - Step 3: Cross multiply
187,462.13x = 258,697.76 × 102,579.21 - Step 4: Simplify right side
187,462.13x = 26,537,011,336.67 - Step 5: Solve for x
x = 26,537,011,336.67/187,462.13 - Step 6: Final answer
x = 141,559.32
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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.