Finding the Fourth Proportional to 101,980.04, 140,654.58 and 73,779.08
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Solution
The fourth proportional to 101,980.04, 140,654.58 and 73,779.08 is: 101,758.79
Step by Step Solution
- Step 1: Write the proportion equation
101,980.04 : 140,654.58 = 73,779.08 : x - Step 2: Convert to fraction form
101,980.04/140,654.58 = 73,779.08/x - Step 3: Cross multiply
101,980.04x = 140,654.58 × 73,779.08 - Step 4: Simplify right side
101,980.04x = 10,377,365,510.19 - Step 5: Solve for x
x = 10,377,365,510.19/101,980.04 - Step 6: Final answer
x = 101,758.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.