Finding the Fourth Proportional to 157,209.58, 216,535.98 and 120,841.48
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Solution
The fourth proportional to 157,209.58, 216,535.98 and 120,841.48 is: 166,443.60
Step by Step Solution
- Step 1: Write the proportion equation
157,209.58 : 216,535.98 = 120,841.48 : x - Step 2: Convert to fraction form
157,209.58/216,535.98 = 120,841.48/x - Step 3: Cross multiply
157,209.58x = 216,535.98 × 120,841.48 - Step 4: Simplify right side
157,209.58x = 26,166,528,296.45 - Step 5: Solve for x
x = 26,166,528,296.45/157,209.58 - Step 6: Final answer
x = 166,443.60
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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.