Finding the Fourth Proportional to 157,866.84, 217,855.98 and 86,246.84
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Solution
The fourth proportional to 157,866.84, 217,855.98 and 86,246.84 is: 119,020.50
Step by Step Solution
- Step 1: Write the proportion equation
157,866.84 : 217,855.98 = 86,246.84 : x - Step 2: Convert to fraction form
157,866.84/217,855.98 = 86,246.84/x - Step 3: Cross multiply
157,866.84x = 217,855.98 × 86,246.84 - Step 4: Simplify right side
157,866.84x = 18,789,390,394.74 - Step 5: Solve for x
x = 18,789,390,394.74/157,866.84 - Step 6: Final answer
x = 119,020.50
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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.