Finding the Fourth Proportional to 115,710.91, 159,676.14 and 67,312.95
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Solution
The fourth proportional to 115,710.91, 159,676.14 and 67,312.95 is: 92,889.02
Step by Step Solution
- Step 1: Write the proportion equation
115,710.91 : 159,676.14 = 67,312.95 : x - Step 2: Convert to fraction form
115,710.91/159,676.14 = 67,312.95/x - Step 3: Cross multiply
115,710.91x = 159,676.14 × 67,312.95 - Step 4: Simplify right side
115,710.91x = 10,748,272,579.83 - Step 5: Solve for x
x = 10,748,272,579.83/115,710.91 - Step 6: Final answer
x = 92,889.02
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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.