Finding the Fourth Proportional to 111,212.42, 153,484.14 and 63,472.98
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Solution
The fourth proportional to 111,212.42, 153,484.14 and 63,472.98 is: 87,598.99
Step by Step Solution
- Step 1: Write the proportion equation
111,212.42 : 153,484.14 = 63,472.98 : x - Step 2: Convert to fraction form
111,212.42/153,484.14 = 63,472.98/x - Step 3: Cross multiply
111,212.42x = 153,484.14 × 63,472.98 - Step 4: Simplify right side
111,212.42x = 9,742,095,748.54 - Step 5: Solve for x
x = 9,742,095,748.54/111,212.42 - Step 6: Final answer
x = 87,598.99
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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.