Finding the Fourth Proportional to 111,089.84, 153,313.44 and 63,330.08
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Solution
The fourth proportional to 111,089.84, 153,313.44 and 63,330.08 is: 87,400.90
Step by Step Solution
- Step 1: Write the proportion equation
111,089.84 : 153,313.44 = 63,330.08 : x - Step 2: Convert to fraction form
111,089.84/153,313.44 = 63,330.08/x - Step 3: Cross multiply
111,089.84x = 153,313.44 × 63,330.08 - Step 4: Simplify right side
111,089.84x = 9,709,352,420.28 - Step 5: Solve for x
x = 9,709,352,420.28/111,089.84 - Step 6: Final answer
x = 87,400.90
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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.