Finding the Fourth Proportional to 157,033.19, 216,686.14 and 106,156.62
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Solution
The fourth proportional to 157,033.19, 216,686.14 and 106,156.62 is: 146,482.84
Step by Step Solution
- Step 1: Write the proportion equation
157,033.19 : 216,686.14 = 106,156.62 : x - Step 2: Convert to fraction form
157,033.19/216,686.14 = 106,156.62/x - Step 3: Cross multiply
157,033.19x = 216,686.14 × 106,156.62 - Step 4: Simplify right side
157,033.19x = 23,002,667,957.86 - Step 5: Solve for x
x = 23,002,667,957.86/157,033.19 - Step 6: Final answer
x = 146,482.84
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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.