Finding the Fourth Proportional to 161,709.70, 242,564.55 and 157,101.70
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Solution
The fourth proportional to 161,709.70, 242,564.55 and 157,101.70 is: 235,652.55
Step by Step Solution
- Step 1: Write the proportion equation
161,709.70 : 242,564.55 = 157,101.70 : x - Step 2: Convert to fraction form
161,709.70/242,564.55 = 157,101.70/x - Step 3: Cross multiply
161,709.70x = 242,564.55 × 157,101.70 - Step 4: Simplify right side
161,709.70x = 38,107,303,164.74 - Step 5: Solve for x
x = 38,107,303,164.74/161,709.70 - Step 6: Final answer
x = 235,652.55
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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.