Finding the Fourth Proportional to 157,030.20, 216,681.99 and 106,153.62
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Solution
The fourth proportional to 157,030.20, 216,681.99 and 106,153.62 is: 146,478.69
Step by Step Solution
- Step 1: Write the proportion equation
157,030.20 : 216,681.99 = 106,153.62 : x - Step 2: Convert to fraction form
157,030.20/216,681.99 = 106,153.62/x - Step 3: Cross multiply
157,030.20x = 216,681.99 × 106,153.62 - Step 4: Simplify right side
157,030.20x = 23,001,577,627.30 - Step 5: Solve for x
x = 23,001,577,627.30/157,030.20 - Step 6: Final answer
x = 146,478.69
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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.