Finding the Fourth Proportional to 97,309.80, 145,964.70 and 84,187.80
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Solution
The fourth proportional to 97,309.80, 145,964.70 and 84,187.80 is: 126,281.70
Step by Step Solution
- Step 1: Write the proportion equation
97,309.80 : 145,964.70 = 84,187.80 : x - Step 2: Convert to fraction form
97,309.80/145,964.70 = 84,187.80/x - Step 3: Cross multiply
97,309.80x = 145,964.70 × 84,187.80 - Step 4: Simplify right side
97,309.80x = 12,288,446,970.66 - Step 5: Solve for x
x = 12,288,446,970.66/97,309.80 - Step 6: Final answer
x = 126,281.70
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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.