Finding the Fourth Proportional to 155,159.70, 232,739.55 and 76,427.70
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Solution
The fourth proportional to 155,159.70, 232,739.55 and 76,427.70 is: 114,641.55
Step by Step Solution
- Step 1: Write the proportion equation
155,159.70 : 232,739.55 = 76,427.70 : x - Step 2: Convert to fraction form
155,159.70/232,739.55 = 76,427.70/x - Step 3: Cross multiply
155,159.70x = 232,739.55 × 76,427.70 - Step 4: Simplify right side
155,159.70x = 17,787,748,505.54 - Step 5: Solve for x
x = 17,787,748,505.54/155,159.70 - Step 6: Final answer
x = 114,641.55
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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.