Finding the Fourth Proportional to 137,848.73, 190,235.84 and 77,430.02
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Solution
The fourth proportional to 137,848.73, 190,235.84 and 77,430.02 is: 106,856.00
Step by Step Solution
- Step 1: Write the proportion equation
137,848.73 : 190,235.84 = 77,430.02 : x - Step 2: Convert to fraction form
137,848.73/190,235.84 = 77,430.02/x - Step 3: Cross multiply
137,848.73x = 190,235.84 × 77,430.02 - Step 4: Simplify right side
137,848.73x = 14,729,963,557.59 - Step 5: Solve for x
x = 14,729,963,557.59/137,848.73 - Step 6: Final answer
x = 106,856.00
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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.