Finding the Fourth Proportional to 168,831.68, 232,972.06 and 93,378.56
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Solution
The fourth proportional to 168,831.68, 232,972.06 and 93,378.56 is: 128,853.75
Step by Step Solution
- Step 1: Write the proportion equation
168,831.68 : 232,972.06 = 93,378.56 : x - Step 2: Convert to fraction form
168,831.68/232,972.06 = 93,378.56/x - Step 3: Cross multiply
168,831.68x = 232,972.06 × 93,378.56 - Step 4: Simplify right side
168,831.68x = 21,754,595,483.03 - Step 5: Solve for x
x = 21,754,595,483.03/168,831.68 - Step 6: Final answer
x = 128,853.75
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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.