Finding the Fourth Proportional to 118,130.08, 163,013.60 and 67,136.08
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Solution
The fourth proportional to 118,130.08, 163,013.60 and 67,136.08 is: 92,644.43
Step by Step Solution
- Step 1: Write the proportion equation
118,130.08 : 163,013.60 = 67,136.08 : x - Step 2: Convert to fraction form
118,130.08/163,013.60 = 67,136.08/x - Step 3: Cross multiply
118,130.08x = 163,013.60 × 67,136.08 - Step 4: Simplify right side
118,130.08x = 10,944,094,090.69 - Step 5: Solve for x
x = 10,944,094,090.69/118,130.08 - Step 6: Final answer
x = 92,644.43
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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.