Finding the Fourth Proportional to 157,823.02, 217,794.66 and 86,203.06
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Solution
The fourth proportional to 157,823.02, 217,794.66 and 86,203.06 is: 118,959.62
Step by Step Solution
- Step 1: Write the proportion equation
157,823.02 : 217,794.66 = 86,203.06 : x - Step 2: Convert to fraction form
157,823.02/217,794.66 = 86,203.06/x - Step 3: Cross multiply
157,823.02x = 217,794.66 × 86,203.06 - Step 4: Simplify right side
157,823.02x = 18,774,566,143.66 - Step 5: Solve for x
x = 18,774,566,143.66/157,823.02 - Step 6: Final answer
x = 118,959.62
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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.