Finding the Fourth Proportional to 98,952.75, 147,885.84 and 72,354.74
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Solution
The fourth proportional to 98,952.75, 147,885.84 and 72,354.74 is: 108,134.85
Step by Step Solution
- Step 1: Write the proportion equation
98,952.75 : 147,885.84 = 72,354.74 : x - Step 2: Convert to fraction form
98,952.75/147,885.84 = 72,354.74/x - Step 3: Cross multiply
98,952.75x = 147,885.84 × 72,354.74 - Step 4: Simplify right side
98,952.75x = 10,700,240,763.45 - Step 5: Solve for x
x = 10,700,240,763.45/98,952.75 - Step 6: Final answer
x = 108,134.85
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.