Finding the Fourth Proportional to 111,088.97, 153,298.99 and 63,357.70
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Solution
The fourth proportional to 111,088.97, 153,298.99 and 63,357.70 is: 87,431.46
Step by Step Solution
- Step 1: Write the proportion equation
111,088.97 : 153,298.99 = 63,357.70 : x - Step 2: Convert to fraction form
111,088.97/153,298.99 = 63,357.70/x - Step 3: Cross multiply
111,088.97x = 153,298.99 × 63,357.70 - Step 4: Simplify right side
111,088.97x = 9,712,670,877.08 - Step 5: Solve for x
x = 9,712,670,877.08/111,088.97 - Step 6: Final answer
x = 87,431.46
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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.