Finding the Fourth Proportional to 137,746.96, 190,077.67 and 77,303.75
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Solution
The fourth proportional to 137,746.96, 190,077.67 and 77,303.75 is: 106,671.80
Step by Step Solution
- Step 1: Write the proportion equation
137,746.96 : 190,077.67 = 77,303.75 : x - Step 2: Convert to fraction form
137,746.96/190,077.67 = 77,303.75/x - Step 3: Cross multiply
137,746.96x = 190,077.67 × 77,303.75 - Step 4: Simplify right side
137,746.96x = 14,693,715,828.50 - Step 5: Solve for x
x = 14,693,715,828.50/137,746.96 - Step 6: Final answer
x = 106,671.80
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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.