Finding the Fourth Proportional to 156,972.70, 235,459.05 and 63,430.30
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Solution
The fourth proportional to 156,972.70, 235,459.05 and 63,430.30 is: 95,145.45
Step by Step Solution
- Step 1: Write the proportion equation
156,972.70 : 235,459.05 = 63,430.30 : x - Step 2: Convert to fraction form
156,972.70/235,459.05 = 63,430.30/x - Step 3: Cross multiply
156,972.70x = 235,459.05 × 63,430.30 - Step 4: Simplify right side
156,972.70x = 14,935,238,179.22 - Step 5: Solve for x
x = 14,935,238,179.22/156,972.70 - Step 6: Final answer
x = 95,145.45
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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.