Finding the Fourth Proportional to 101,368.65, 139,883.09 and 56,043.99
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Solution
The fourth proportional to 101,368.65, 139,883.09 and 56,043.99 is: 77,337.58
Step by Step Solution
- Step 1: Write the proportion equation
101,368.65 : 139,883.09 = 56,043.99 : x - Step 2: Convert to fraction form
101,368.65/139,883.09 = 56,043.99/x - Step 3: Cross multiply
101,368.65x = 139,883.09 × 56,043.99 - Step 4: Simplify right side
101,368.65x = 7,839,606,216.91 - Step 5: Solve for x
x = 7,839,606,216.91/101,368.65 - Step 6: Final answer
x = 77,337.58
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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.