Finding the Fourth Proportional to 133,718.19, 184,520.61 and 77,118.63
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Solution
The fourth proportional to 133,718.19, 184,520.61 and 77,118.63 is: 106,417.66
Step by Step Solution
- Step 1: Write the proportion equation
133,718.19 : 184,520.61 = 77,118.63 : x - Step 2: Convert to fraction form
133,718.19/184,520.61 = 77,118.63/x - Step 3: Cross multiply
133,718.19x = 184,520.61 × 77,118.63 - Step 4: Simplify right side
133,718.19x = 14,229,976,779.04 - Step 5: Solve for x
x = 14,229,976,779.04/133,718.19 - Step 6: Final answer
x = 106,417.66
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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.