Finding the Fourth Proportional to 92,267.10, 138,400.65 and 69,959.70
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Solution
The fourth proportional to 92,267.10, 138,400.65 and 69,959.70 is: 104,939.55
Step by Step Solution
- Step 1: Write the proportion equation
92,267.10 : 138,400.65 = 69,959.70 : x - Step 2: Convert to fraction form
92,267.10/138,400.65 = 69,959.70/x - Step 3: Cross multiply
92,267.10x = 138,400.65 × 69,959.70 - Step 4: Simplify right side
92,267.10x = 9,682,467,953.81 - Step 5: Solve for x
x = 9,682,467,953.81/92,267.10 - Step 6: Final answer
x = 104,939.55
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1.5x scale
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.