Finding the Fourth Proportional to 153,733.28, 212,119.52 and 93,335.68
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Solution
The fourth proportional to 153,733.28, 212,119.52 and 93,335.68 is: 128,783.56
Step by Step Solution
- Step 1: Write the proportion equation
153,733.28 : 212,119.52 = 93,335.68 : x - Step 2: Convert to fraction form
153,733.28/212,119.52 = 93,335.68/x - Step 3: Cross multiply
153,733.28x = 212,119.52 × 93,335.68 - Step 4: Simplify right side
153,733.28x = 19,798,319,640.47 - Step 5: Solve for x
x = 19,798,319,640.47/153,733.28 - Step 6: Final answer
x = 128,783.56
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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.