Finding the Fourth Proportional to 130,590.60, 195,877.68 and 77,960.44
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Solution
The fourth proportional to 130,590.60, 195,877.68 and 77,960.44 is: 116,935.75
Step by Step Solution
- Step 1: Write the proportion equation
130,590.60 : 195,877.68 = 77,960.44 : x - Step 2: Convert to fraction form
130,590.60/195,877.68 = 77,960.44/x - Step 3: Cross multiply
130,590.60x = 195,877.68 × 77,960.44 - Step 4: Simplify right side
130,590.60x = 15,270,710,118.98 - Step 5: Solve for x
x = 15,270,710,118.98/130,590.60 - Step 6: Final answer
x = 116,935.75
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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.