Finding the Fourth Proportional to 121,746.20, 182,619.30 and 92,221.70
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Solution
The fourth proportional to 121,746.20, 182,619.30 and 92,221.70 is: 138,332.55
Step by Step Solution
- Step 1: Write the proportion equation
121,746.20 : 182,619.30 = 92,221.70 : x - Step 2: Convert to fraction form
121,746.20/182,619.30 = 92,221.70/x - Step 3: Cross multiply
121,746.20x = 182,619.30 × 92,221.70 - Step 4: Simplify right side
121,746.20x = 16,841,462,298.81 - Step 5: Solve for x
x = 16,841,462,298.81/121,746.20 - Step 6: Final answer
x = 138,332.55
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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.