Finding the Fourth Proportional to 111,303.69, 153,622.28 and 102,336.99
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Solution
The fourth proportional to 111,303.69, 153,622.28 and 102,336.99 is: 141,246.36
Step by Step Solution
- Step 1: Write the proportion equation
111,303.69 : 153,622.28 = 102,336.99 : x - Step 2: Convert to fraction form
111,303.69/153,622.28 = 102,336.99/x - Step 3: Cross multiply
111,303.69x = 153,622.28 × 102,336.99 - Step 4: Simplify right side
111,303.69x = 15,721,241,220.45 - Step 5: Solve for x
x = 15,721,241,220.45/111,303.69 - Step 6: Final answer
x = 141,246.36
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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.