Finding the Fourth Proportional to 138,045.24, 207,037.08 and 53,807.67
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Solution
The fourth proportional to 138,045.24, 207,037.08 and 53,807.67 is: 80,699.51
Step by Step Solution
- Step 1: Write the proportion equation
138,045.24 : 207,037.08 = 53,807.67 : x - Step 2: Convert to fraction form
138,045.24/207,037.08 = 53,807.67/x - Step 3: Cross multiply
138,045.24x = 207,037.08 × 53,807.67 - Step 4: Simplify right side
138,045.24x = 11,140,182,878.40 - Step 5: Solve for x
x = 11,140,182,878.40/138,045.24 - Step 6: Final answer
x = 80,699.51
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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.