Finding the Fourth Proportional to 143,246.72, 197,521.12 and 97,932.08
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Solution
The fourth proportional to 143,246.72, 197,521.12 and 97,932.08 is: 135,037.33
Step by Step Solution
- Step 1: Write the proportion equation
143,246.72 : 197,521.12 = 97,932.08 : x - Step 2: Convert to fraction form
143,246.72/197,521.12 = 97,932.08/x - Step 3: Cross multiply
143,246.72x = 197,521.12 × 97,932.08 - Step 4: Simplify right side
143,246.72x = 19,343,654,125.53 - Step 5: Solve for x
x = 19,343,654,125.53/143,246.72 - Step 6: Final answer
x = 135,037.33
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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.