Finding the Fourth Proportional to 153,695.70, 212,067.99 and 93,298.14
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Solution
The fourth proportional to 153,695.70, 212,067.99 and 93,298.14 is: 128,731.96
Step by Step Solution
- Step 1: Write the proportion equation
153,695.70 : 212,067.99 = 93,298.14 : x - Step 2: Convert to fraction form
153,695.70/212,067.99 = 93,298.14/x - Step 3: Cross multiply
153,695.70x = 212,067.99 × 93,298.14 - Step 4: Simplify right side
153,695.70x = 19,785,549,020.54 - Step 5: Solve for x
x = 19,785,549,020.54/153,695.70 - Step 6: Final answer
x = 128,731.96
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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.