Finding the Fourth Proportional to 153,259.08, 211,495.50 and 86,191.08
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Solution
The fourth proportional to 153,259.08, 211,495.50 and 86,191.08 is: 118,942.55
Step by Step Solution
- Step 1: Write the proportion equation
153,259.08 : 211,495.50 = 86,191.08 : x - Step 2: Convert to fraction form
153,259.08/211,495.50 = 86,191.08/x - Step 3: Cross multiply
153,259.08x = 211,495.50 × 86,191.08 - Step 4: Simplify right side
153,259.08x = 18,229,025,560.14 - Step 5: Solve for x
x = 18,229,025,560.14/153,259.08 - Step 6: Final answer
x = 118,942.55
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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.