Finding the Fourth Proportional to 156,683.56, 216,009.08 and 107,623.68
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Solution
The fourth proportional to 156,683.56, 216,009.08 and 107,623.68 is: 148,373.53
Step by Step Solution
- Step 1: Write the proportion equation
156,683.56 : 216,009.08 = 107,623.68 : x - Step 2: Convert to fraction form
156,683.56/216,009.08 = 107,623.68/x - Step 3: Cross multiply
156,683.56x = 216,009.08 × 107,623.68 - Step 4: Simplify right side
156,683.56x = 23,247,692,372.07 - Step 5: Solve for x
x = 23,247,692,372.07/156,683.56 - Step 6: Final answer
x = 148,373.53
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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.