Finding the Fourth Proportional to 102,117.70, 153,176.55 and 99,201.70
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Solution
The fourth proportional to 102,117.70, 153,176.55 and 99,201.70 is: 148,802.55
Step by Step Solution
- Step 1: Write the proportion equation
102,117.70 : 153,176.55 = 99,201.70 : x - Step 2: Convert to fraction form
102,117.70/153,176.55 = 99,201.70/x - Step 3: Cross multiply
102,117.70x = 153,176.55 × 99,201.70 - Step 4: Simplify right side
102,117.70x = 15,195,374,160.14 - Step 5: Solve for x
x = 15,195,374,160.14/102,117.70 - Step 6: Final answer
x = 148,802.55
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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.