Finding the Fourth Proportional to 97,101.80, 145,652.70 and 57,638.60
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Solution
The fourth proportional to 97,101.80, 145,652.70 and 57,638.60 is: 86,457.90
Step by Step Solution
- Step 1: Write the proportion equation
97,101.80 : 145,652.70 = 57,638.60 : x - Step 2: Convert to fraction form
97,101.80/145,652.70 = 57,638.60/x - Step 3: Cross multiply
97,101.80x = 145,652.70 × 57,638.60 - Step 4: Simplify right side
97,101.80x = 8,395,217,714.22 - Step 5: Solve for x
x = 8,395,217,714.22/97,101.80 - Step 6: Final answer
x = 86,457.90
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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.