Finding the Fourth Proportional to 97,153.40, 134,683.10 and 91,831.70
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Solution
The fourth proportional to 97,153.40, 134,683.10 and 91,831.70 is: 127,305.66
Step by Step Solution
- Step 1: Write the proportion equation
97,153.40 : 134,683.10 = 91,831.70 : x - Step 2: Convert to fraction form
97,153.40/134,683.10 = 91,831.70/x - Step 3: Cross multiply
97,153.40x = 134,683.10 × 91,831.70 - Step 4: Simplify right side
97,153.40x = 12,368,178,034.27 - Step 5: Solve for x
x = 12,368,178,034.27/97,153.40 - Step 6: Final answer
x = 127,305.66
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.