Finding the Fourth Proportional to 156,166.05, 215,506.58 and 84,545.49
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Solution
The fourth proportional to 156,166.05, 215,506.58 and 84,545.49 is: 116,671.38
Step by Step Solution
- Step 1: Write the proportion equation
156,166.05 : 215,506.58 = 84,545.49 : x - Step 2: Convert to fraction form
156,166.05/215,506.58 = 84,545.49/x - Step 3: Cross multiply
156,166.05x = 215,506.58 × 84,545.49 - Step 4: Simplify right side
156,166.05x = 18,220,108,981.60 - Step 5: Solve for x
x = 18,220,108,981.60/156,166.05 - Step 6: Final answer
x = 116,671.38
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1.5x scale
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.