Finding the Fourth Proportional to 153,927.68, 212,451.84 and 90,298.88
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Solution
The fourth proportional to 153,927.68, 212,451.84 and 90,298.88 is: 124,631.02
Step by Step Solution
- Step 1: Write the proportion equation
153,927.68 : 212,451.84 = 90,298.88 : x - Step 2: Convert to fraction form
153,927.68/212,451.84 = 90,298.88/x - Step 3: Cross multiply
153,927.68x = 212,451.84 × 90,298.88 - Step 4: Simplify right side
153,927.68x = 19,184,163,205.94 - Step 5: Solve for x
x = 19,184,163,205.94/153,927.68 - Step 6: Final answer
x = 124,631.02
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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.