Finding the Fourth Proportional to 124,813.80, 187,220.70 and 118,981.80
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Solution
The fourth proportional to 124,813.80, 187,220.70 and 118,981.80 is: 178,472.70
Step by Step Solution
- Step 1: Write the proportion equation
124,813.80 : 187,220.70 = 118,981.80 : x - Step 2: Convert to fraction form
124,813.80/187,220.70 = 118,981.80/x - Step 3: Cross multiply
124,813.80x = 187,220.70 × 118,981.80 - Step 4: Simplify right side
124,813.80x = 22,275,855,883.26 - Step 5: Solve for x
x = 22,275,855,883.26/124,813.80 - Step 6: Final answer
x = 178,472.70
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1.5x scale
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.