Finding the Fourth Proportional to 157,803.84, 217,712.88 and 93,259.44
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Solution
The fourth proportional to 157,803.84, 217,712.88 and 93,259.44 is: 128,664.68
Step by Step Solution
- Step 1: Write the proportion equation
157,803.84 : 217,712.88 = 93,259.44 : x - Step 2: Convert to fraction form
157,803.84/217,712.88 = 93,259.44/x - Step 3: Cross multiply
157,803.84x = 217,712.88 × 93,259.44 - Step 4: Simplify right side
157,803.84x = 20,303,781,269.59 - Step 5: Solve for x
x = 20,303,781,269.59/157,803.84 - Step 6: Final answer
x = 128,664.68
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1.5x scale
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.