Finding the Fourth Proportional to 117,831.70, 176,642.79 and 42,937.75
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Solution
The fourth proportional to 117,831.70, 176,642.79 and 42,937.75 is: 64,368.45
Step by Step Solution
- Step 1: Write the proportion equation
117,831.70 : 176,642.79 = 42,937.75 : x - Step 2: Convert to fraction form
117,831.70/176,642.79 = 42,937.75/x - Step 3: Cross multiply
117,831.70x = 176,642.79 × 42,937.75 - Step 4: Simplify right side
117,831.70x = 7,584,643,956.32 - Step 5: Solve for x
x = 7,584,643,956.32/117,831.70 - Step 6: Final answer
x = 64,368.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.