Finding the Fourth Proportional to 118,428.08, 177,670.08 and 38,465.80
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Solution
The fourth proportional to 118,428.08, 177,670.08 and 38,465.80 is: 57,707.78
Step by Step Solution
- Step 1: Write the proportion equation
118,428.08 : 177,670.08 = 38,465.80 : x - Step 2: Convert to fraction form
118,428.08/177,670.08 = 38,465.80/x - Step 3: Cross multiply
118,428.08x = 177,670.08 × 38,465.80 - Step 4: Simplify right side
118,428.08x = 6,834,221,763.26 - Step 5: Solve for x
x = 6,834,221,763.26/118,428.08 - Step 6: Final answer
x = 57,707.78
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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.