Finding the Fourth Proportional to 98,925.84, 136,529.65 and 55,907.15
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Solution
The fourth proportional to 98,925.84, 136,529.65 and 55,907.15 is: 77,158.64
Step by Step Solution
- Step 1: Write the proportion equation
98,925.84 : 136,529.65 = 55,907.15 : x - Step 2: Convert to fraction form
98,925.84/136,529.65 = 55,907.15/x - Step 3: Cross multiply
98,925.84x = 136,529.65 × 55,907.15 - Step 4: Simplify right side
98,925.84x = 7,632,983,009.23 - Step 5: Solve for x
x = 7,632,983,009.23/98,925.84 - Step 6: Final answer
x = 77,158.64
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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.