Finding the Fourth Proportional to 111,437.61, 153,746.49 and 63,657.12
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Solution
The fourth proportional to 111,437.61, 153,746.49 and 63,657.12 is: 87,825.45
Step by Step Solution
- Step 1: Write the proportion equation
111,437.61 : 153,746.49 = 63,657.12 : x - Step 2: Convert to fraction form
111,437.61/153,746.49 = 63,657.12/x - Step 3: Cross multiply
111,437.61x = 153,746.49 × 63,657.12 - Step 4: Simplify right side
111,437.61x = 9,787,058,763.51 - Step 5: Solve for x
x = 9,787,058,763.51/111,437.61 - Step 6: Final answer
x = 87,825.45
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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.