Finding the Fourth Proportional to 157,952.68, 217,968.76 and 86,332.12
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Solution
The fourth proportional to 157,952.68, 217,968.76 and 86,332.12 is: 119,135.08
Step by Step Solution
- Step 1: Write the proportion equation
157,952.68 : 217,968.76 = 86,332.12 : x - Step 2: Convert to fraction form
157,952.68/217,968.76 = 86,332.12/x - Step 3: Cross multiply
157,952.68x = 217,968.76 × 86,332.12 - Step 4: Simplify right side
157,952.68x = 18,817,705,144.57 - Step 5: Solve for x
x = 18,817,705,144.57/157,952.68 - Step 6: Final answer
x = 119,135.08
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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.