Finding the Fourth Proportional to 148,642.28, 205,162.79 and 91,295.34
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Solution
The fourth proportional to 148,642.28, 205,162.79 and 91,295.34 is: 126,009.95
Step by Step Solution
- Step 1: Write the proportion equation
148,642.28 : 205,162.79 = 91,295.34 : x - Step 2: Convert to fraction form
148,642.28/205,162.79 = 91,295.34/x - Step 3: Cross multiply
148,642.28x = 205,162.79 × 91,295.34 - Step 4: Simplify right side
148,642.28x = 18,730,406,668.40 - Step 5: Solve for x
x = 18,730,406,668.40/148,642.28 - Step 6: Final answer
x = 126,009.95
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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.