Finding the Fourth Proportional to 105,338.08, 145,368.84 and 62,888.68
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Solution
The fourth proportional to 105,338.08, 145,368.84 and 62,888.68 is: 86,787.75
Step by Step Solution
- Step 1: Write the proportion equation
105,338.08 : 145,368.84 = 62,888.68 : x - Step 2: Convert to fraction form
105,338.08/145,368.84 = 62,888.68/x - Step 3: Cross multiply
105,338.08x = 145,368.84 × 62,888.68 - Step 4: Simplify right side
105,338.08x = 9,142,054,460.73 - Step 5: Solve for x
x = 9,142,054,460.73/105,338.08 - Step 6: Final answer
x = 86,787.75
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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.