Finding the Fourth Proportional to 153,386.08, 211,618.02 and 88,820.08
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Solution
The fourth proportional to 153,386.08, 211,618.02 and 88,820.08 is: 122,539.99
Step by Step Solution
- Step 1: Write the proportion equation
153,386.08 : 211,618.02 = 88,820.08 : x - Step 2: Convert to fraction form
153,386.08/211,618.02 = 88,820.08/x - Step 3: Cross multiply
153,386.08x = 211,618.02 × 88,820.08 - Step 4: Simplify right side
153,386.08x = 18,795,929,465.84 - Step 5: Solve for x
x = 18,795,929,465.84/153,386.08 - Step 6: Final answer
x = 122,539.99
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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.