Finding the Fourth Proportional to 157,029.24, 216,701.36 and 85,409.76
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Solution
The fourth proportional to 157,029.24, 216,701.36 and 85,409.76 is: 117,866.02
Step by Step Solution
- Step 1: Write the proportion equation
157,029.24 : 216,701.36 = 85,409.76 : x - Step 2: Convert to fraction form
157,029.24/216,701.36 = 85,409.76/x - Step 3: Cross multiply
157,029.24x = 216,701.36 × 85,409.76 - Step 4: Simplify right side
157,029.24x = 18,508,411,149.27 - Step 5: Solve for x
x = 18,508,411,149.27/157,029.24 - Step 6: Final answer
x = 117,866.02
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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.