Finding the Fourth Proportional to 158,158.12, 236,853.24 and 86,972.08
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Solution
The fourth proportional to 158,158.12, 236,853.24 and 86,972.08 is: 130,246.99
Step by Step Solution
- Step 1: Write the proportion equation
158,158.12 : 236,853.24 = 86,972.08 : x - Step 2: Convert to fraction form
158,158.12/236,853.24 = 86,972.08/x - Step 3: Cross multiply
158,158.12x = 236,853.24 × 86,972.08 - Step 4: Simplify right side
158,158.12x = 20,599,618,937.54 - Step 5: Solve for x
x = 20,599,618,937.54/158,158.12 - Step 6: Final answer
x = 130,246.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.