Finding the Fourth Proportional to 153,852.23, 212,316.17 and 84,941.75
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Solution
The fourth proportional to 153,852.23, 212,316.17 and 84,941.75 is: 117,219.66
Step by Step Solution
- Step 1: Write the proportion equation
153,852.23 : 212,316.17 = 84,941.75 : x - Step 2: Convert to fraction form
153,852.23/212,316.17 = 84,941.75/x - Step 3: Cross multiply
153,852.23x = 212,316.17 × 84,941.75 - Step 4: Simplify right side
153,852.23x = 18,034,506,183.87 - Step 5: Solve for x
x = 18,034,506,183.87/153,852.23 - Step 6: Final answer
x = 117,219.66
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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.