Finding the Fourth Proportional to 97,989.60, 147,070.80 and 83,992.80
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Solution
The fourth proportional to 97,989.60, 147,070.80 and 83,992.80 is: 126,063.26
Step by Step Solution
- Step 1: Write the proportion equation
97,989.60 : 147,070.80 = 83,992.80 : x - Step 2: Convert to fraction form
97,989.60/147,070.80 = 83,992.80/x - Step 3: Cross multiply
97,989.60x = 147,070.80 × 83,992.80 - Step 4: Simplify right side
97,989.60x = 12,352,888,290.24 - Step 5: Solve for x
x = 12,352,888,290.24/97,989.60 - Step 6: Final answer
x = 126,063.26
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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.