Finding the Fourth Proportional to 130,937.48, 180,698.94 and 74,354.12
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Solution
The fourth proportional to 130,937.48, 180,698.94 and 74,354.12 is: 102,611.65
Step by Step Solution
- Step 1: Write the proportion equation
130,937.48 : 180,698.94 = 74,354.12 : x - Step 2: Convert to fraction form
130,937.48/180,698.94 = 74,354.12/x - Step 3: Cross multiply
130,937.48x = 180,698.94 × 74,354.12 - Step 4: Simplify right side
130,937.48x = 13,435,710,668.63 - Step 5: Solve for x
x = 13,435,710,668.63/130,937.48 - Step 6: Final answer
x = 102,611.65
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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.