Finding the Fourth Proportional to 124,731.36, 171,779.40 and 116,726.94
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Solution
The fourth proportional to 124,731.36, 171,779.40 and 116,726.94 is: 160,755.75
Step by Step Solution
- Step 1: Write the proportion equation
124,731.36 : 171,779.40 = 116,726.94 : x - Step 2: Convert to fraction form
124,731.36/171,779.40 = 116,726.94/x - Step 3: Cross multiply
124,731.36x = 171,779.40 × 116,726.94 - Step 4: Simplify right side
124,731.36x = 20,051,283,717.04 - Step 5: Solve for x
x = 20,051,283,717.04/124,731.36 - Step 6: Final answer
x = 160,755.75
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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.