Finding the Fourth Proportional to 107,394.58, 148,220.67 and 77,279.59
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Solution
The fourth proportional to 107,394.58, 148,220.67 and 77,279.59 is: 106,657.46
Step by Step Solution
- Step 1: Write the proportion equation
107,394.58 : 148,220.67 = 77,279.59 : x - Step 2: Convert to fraction form
107,394.58/148,220.67 = 77,279.59/x - Step 3: Cross multiply
107,394.58x = 148,220.67 × 77,279.59 - Step 4: Simplify right side
107,394.58x = 11,454,432,607.13 - Step 5: Solve for x
x = 11,454,432,607.13/107,394.58 - Step 6: Final answer
x = 106,657.46
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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.