Finding the Fourth Proportional to 118,878.03, 178,337.09 and 39,973.50
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Solution
The fourth proportional to 118,878.03, 178,337.09 and 39,973.50 is: 59,966.99
Step by Step Solution
- Step 1: Write the proportion equation
118,878.03 : 178,337.09 = 39,973.50 : x - Step 2: Convert to fraction form
118,878.03/178,337.09 = 39,973.50/x - Step 3: Cross multiply
118,878.03x = 178,337.09 × 39,973.50 - Step 4: Simplify right side
118,878.03x = 7,128,757,767.05 - Step 5: Solve for x
x = 7,128,757,767.05/118,878.03 - Step 6: Final answer
x = 59,966.99
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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.