Finding the Fourth Proportional to 110,671.80, 152,711.68 and 62,919.87
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Solution
The fourth proportional to 110,671.80, 152,711.68 and 62,919.87 is: 86,820.66
Step by Step Solution
- Step 1: Write the proportion equation
110,671.80 : 152,711.68 = 62,919.87 : x - Step 2: Convert to fraction form
110,671.80/152,711.68 = 62,919.87/x - Step 3: Cross multiply
110,671.80x = 152,711.68 × 62,919.87 - Step 4: Simplify right side
110,671.80x = 9,608,599,053.08 - Step 5: Solve for x
x = 9,608,599,053.08/110,671.80 - Step 6: Final answer
x = 86,820.66
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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.