Finding the Fourth Proportional to 121,509.18, 182,307.52 and 42,635.70
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Solution
The fourth proportional to 121,509.18, 182,307.52 and 42,635.70 is: 63,968.90
Step by Step Solution
- Step 1: Write the proportion equation
121,509.18 : 182,307.52 = 42,635.70 : x - Step 2: Convert to fraction form
121,509.18/182,307.52 = 42,635.70/x - Step 3: Cross multiply
121,509.18x = 182,307.52 × 42,635.70 - Step 4: Simplify right side
121,509.18x = 7,772,808,730.46 - Step 5: Solve for x
x = 7,772,808,730.46/121,509.18 - Step 6: Final answer
x = 63,968.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.