Finding the Fourth Proportional to 145,966.08, 201,433.06 and 78,898.08
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Solution
The fourth proportional to 145,966.08, 201,433.06 and 78,898.08 is: 108,879.28
Step by Step Solution
- Step 1: Write the proportion equation
145,966.08 : 201,433.06 = 78,898.08 : x - Step 2: Convert to fraction form
145,966.08/201,433.06 = 78,898.08/x - Step 3: Cross multiply
145,966.08x = 201,433.06 × 78,898.08 - Step 4: Simplify right side
145,966.08x = 15,892,681,682.52 - Step 5: Solve for x
x = 15,892,681,682.52/145,966.08 - Step 6: Final answer
x = 108,879.28
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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.