Finding the Fourth Proportional to 152,800.82, 210,855.68 and 84,813.74
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Solution
The fourth proportional to 152,800.82, 210,855.68 and 84,813.74 is: 117,037.71
Step by Step Solution
- Step 1: Write the proportion equation
152,800.82 : 210,855.68 = 84,813.74 : x - Step 2: Convert to fraction form
152,800.82/210,855.68 = 84,813.74/x - Step 3: Cross multiply
152,800.82x = 210,855.68 × 84,813.74 - Step 4: Simplify right side
152,800.82x = 17,883,458,301.54 - Step 5: Solve for x
x = 17,883,458,301.54/152,800.82 - Step 6: Final answer
x = 117,037.71
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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.