Finding the Fourth Proportional to 163,515.70, 245,281.65 and 84,783.70
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Solution
The fourth proportional to 163,515.70, 245,281.65 and 84,783.70 is: 127,179.75
Step by Step Solution
- Step 1: Write the proportion equation
163,515.70 : 245,281.65 = 84,783.70 : x - Step 2: Convert to fraction form
163,515.70/245,281.65 = 84,783.70/x - Step 3: Cross multiply
163,515.70x = 245,281.65 × 84,783.70 - Step 4: Simplify right side
163,515.70x = 20,795,885,829.11 - Step 5: Solve for x
x = 20,795,885,829.11/163,515.70 - Step 6: Final answer
x = 127,179.75
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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.