Finding the Fourth Proportional to 148,888.51, 205,498.55 and 91,577.09
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Solution
The fourth proportional to 148,888.51, 205,498.55 and 91,577.09 is: 126,396.32
Step by Step Solution
- Step 1: Write the proportion equation
148,888.51 : 205,498.55 = 91,577.09 : x - Step 2: Convert to fraction form
148,888.51/205,498.55 = 91,577.09/x - Step 3: Cross multiply
148,888.51x = 205,498.55 × 91,577.09 - Step 4: Simplify right side
148,888.51x = 18,818,959,208.22 - Step 5: Solve for x
x = 18,818,959,208.22/148,888.51 - Step 6: Final answer
x = 126,396.32
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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.