Finding the Fourth Proportional to 158,246.84, 218,374.06 and 86,625.08
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Solution
The fourth proportional to 158,246.84, 218,374.06 and 86,625.08 is: 119,539.01
Step by Step Solution
- Step 1: Write the proportion equation
158,246.84 : 218,374.06 = 86,625.08 : x - Step 2: Convert to fraction form
158,246.84/218,374.06 = 86,625.08/x - Step 3: Cross multiply
158,246.84x = 218,374.06 × 86,625.08 - Step 4: Simplify right side
158,246.84x = 18,916,670,417.42 - Step 5: Solve for x
x = 18,916,670,417.42/158,246.84 - Step 6: Final answer
x = 119,539.01
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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.