Finding the Fourth Proportional to 97,811.80, 146,717.70 and 45,323.80
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Solution
The fourth proportional to 97,811.80, 146,717.70 and 45,323.80 is: 67,985.70
Step by Step Solution
- Step 1: Write the proportion equation
97,811.80 : 146,717.70 = 45,323.80 : x - Step 2: Convert to fraction form
97,811.80/146,717.70 = 45,323.80/x - Step 3: Cross multiply
97,811.80x = 146,717.70 × 45,323.80 - Step 4: Simplify right side
97,811.80x = 6,649,803,691.26 - Step 5: Solve for x
x = 6,649,803,691.26/97,811.80 - Step 6: Final answer
x = 67,985.70
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1.5x scale
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.