Finding the Fourth Proportional to 134,138.90, 201,208.35 and 86,899.70
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Solution
The fourth proportional to 134,138.90, 201,208.35 and 86,899.70 is: 130,349.55
Step by Step Solution
- Step 1: Write the proportion equation
134,138.90 : 201,208.35 = 86,899.70 : x - Step 2: Convert to fraction form
134,138.90/201,208.35 = 86,899.70/x - Step 3: Cross multiply
134,138.90x = 201,208.35 × 86,899.70 - Step 4: Simplify right side
134,138.90x = 17,484,945,252.50 - Step 5: Solve for x
x = 17,484,945,252.50/134,138.90 - Step 6: Final answer
x = 130,349.55
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1.5x scale
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.