Finding the Fourth Proportional to 134,420.70, 201,631.05 and 92,430.30
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Solution
The fourth proportional to 134,420.70, 201,631.05 and 92,430.30 is: 138,645.45
Step by Step Solution
- Step 1: Write the proportion equation
134,420.70 : 201,631.05 = 92,430.30 : x - Step 2: Convert to fraction form
134,420.70/201,631.05 = 92,430.30/x - Step 3: Cross multiply
134,420.70x = 201,631.05 × 92,430.30 - Step 4: Simplify right side
134,420.70x = 18,636,818,440.82 - Step 5: Solve for x
x = 18,636,818,440.82/134,420.70 - Step 6: Final answer
x = 138,645.45
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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.