Finding the Fourth Proportional to 130,920.26, 180,671.16 and 74,332.84
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Solution
The fourth proportional to 130,920.26, 180,671.16 and 74,332.84 is: 102,580.00
Step by Step Solution
- Step 1: Write the proportion equation
130,920.26 : 180,671.16 = 74,332.84 : x - Step 2: Convert to fraction form
130,920.26/180,671.16 = 74,332.84/x - Step 3: Cross multiply
130,920.26x = 180,671.16 × 74,332.84 - Step 4: Simplify right side
130,920.26x = 13,429,800,428.89 - Step 5: Solve for x
x = 13,429,800,428.89/130,920.26 - Step 6: Final answer
x = 102,580.00
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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.