Finding the Fourth Proportional to 146,038.68, 201,533.40 and 78,970.68
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Solution
The fourth proportional to 146,038.68, 201,533.40 and 78,970.68 is: 108,979.55
Step by Step Solution
- Step 1: Write the proportion equation
146,038.68 : 201,533.40 = 78,970.68 : x - Step 2: Convert to fraction form
146,038.68/201,533.40 = 78,970.68/x - Step 3: Cross multiply
146,038.68x = 201,533.40 × 78,970.68 - Step 4: Simplify right side
146,038.68x = 15,915,229,640.71 - Step 5: Solve for x
x = 15,915,229,640.71/146,038.68 - Step 6: Final answer
x = 108,979.55
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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.