Finding the Fourth Proportional to 124,877.92, 172,468.56 and 84,779.68
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Solution
The fourth proportional to 124,877.92, 172,468.56 and 84,779.68 is: 117,088.99
Step by Step Solution
- Step 1: Write the proportion equation
124,877.92 : 172,468.56 = 84,779.68 : x - Step 2: Convert to fraction form
124,877.92/172,468.56 = 84,779.68/x - Step 3: Cross multiply
124,877.92x = 172,468.56 × 84,779.68 - Step 4: Simplify right side
124,877.92x = 14,621,829,326.86 - Step 5: Solve for x
x = 14,621,829,326.86/124,877.92 - Step 6: Final answer
x = 117,088.99
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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.