Finding the Fourth Proportional to 101,473.70, 152,029.98 and 86,531.02
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Solution
The fourth proportional to 101,473.70, 152,029.98 and 86,531.02 is: 129,642.55
Step by Step Solution
- Step 1: Write the proportion equation
101,473.70 : 152,029.98 = 86,531.02 : x - Step 2: Convert to fraction form
101,473.70/152,029.98 = 86,531.02/x - Step 3: Cross multiply
101,473.70x = 152,029.98 × 86,531.02 - Step 4: Simplify right side
101,473.70x = 13,155,308,859.90 - Step 5: Solve for x
x = 13,155,308,859.90/101,473.70 - Step 6: Final answer
x = 129,642.55
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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.