Finding the Fourth Proportional to 156,904.74, 235,332.36 and 130,420.98
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Solution
The fourth proportional to 156,904.74, 235,332.36 and 130,420.98 is: 195,610.90
Step by Step Solution
- Step 1: Write the proportion equation
156,904.74 : 235,332.36 = 130,420.98 : x - Step 2: Convert to fraction form
156,904.74/235,332.36 = 130,420.98/x - Step 3: Cross multiply
156,904.74x = 235,332.36 × 130,420.98 - Step 4: Simplify right side
156,904.74x = 30,692,277,016.91 - Step 5: Solve for x
x = 30,692,277,016.91/156,904.74 - Step 6: Final answer
x = 195,610.90
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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.