Finding the Fourth Proportional to 148,748.70, 205,252.52 and 87,497.66
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Solution
The fourth proportional to 148,748.70, 205,252.52 and 87,497.66 is: 120,734.60
Step by Step Solution
- Step 1: Write the proportion equation
148,748.70 : 205,252.52 = 87,497.66 : x - Step 2: Convert to fraction form
148,748.70/205,252.52 = 87,497.66/x - Step 3: Cross multiply
148,748.70x = 205,252.52 × 87,497.66 - Step 4: Simplify right side
148,748.70x = 17,959,115,209.10 - Step 5: Solve for x
x = 17,959,115,209.10/148,748.70 - Step 6: Final answer
x = 120,734.60
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1.5x scale
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.