Finding the Fourth Proportional to 156,931.28, 235,398.36 and 111,762.08
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Solution
The fourth proportional to 156,931.28, 235,398.36 and 111,762.08 is: 167,644.15
Step by Step Solution
- Step 1: Write the proportion equation
156,931.28 : 235,398.36 = 111,762.08 : x - Step 2: Convert to fraction form
156,931.28/235,398.36 = 111,762.08/x - Step 3: Cross multiply
156,931.28x = 235,398.36 × 111,762.08 - Step 4: Simplify right side
156,931.28x = 26,308,610,342.19 - Step 5: Solve for x
x = 26,308,610,342.19/156,931.28 - Step 6: Final answer
x = 167,644.15
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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.