Finding the Fourth Proportional to 158,124.54, 218,210.02 and 86,503.68
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Solution
The fourth proportional to 158,124.54, 218,210.02 and 86,503.68 is: 119,374.07
Step by Step Solution
- Step 1: Write the proportion equation
158,124.54 : 218,210.02 = 86,503.68 : x - Step 2: Convert to fraction form
158,124.54/218,210.02 = 86,503.68/x - Step 3: Cross multiply
158,124.54x = 218,210.02 × 86,503.68 - Step 4: Simplify right side
158,124.54x = 18,875,969,742.87 - Step 5: Solve for x
x = 18,875,969,742.87/158,124.54 - Step 6: Final answer
x = 119,374.07
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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.